Global IPv6 Deployment Progress Report

By Mike Leber

This page was developed in order to provide metrics for global IPv6 deployment. These statistics are updated daily. Please send questions, comments, or bugs to mleber@he.net

The tools for this report were developed while working on a paper titled "Going Native" about Hurricane's experience of adding extensive native IPv6 peering as a result of a core router and backbone upgrade.

Top Level Domains with IPv6 support

The root nameservers contain NS records listing the nameservers for the Top Level Domains (TLDs) and A and AAAA glue records to get to those nameservers. Top level domains include domain name suffixes such as .com .net .org .us .ca etc. Each TLD has specific authorative nameservers. To support IPv6 these nameservers should: Generated by parsing the root zonefile to get a list of TLDs and their associated nameservers, querying for AAAA records for the names of those nameservers and checking for AAAA records in the root zone for those nameservers.

Root Zone Downloaded: Fri Dec 19 00:30:02 2014
Root Zone Processed: Fri Dec 19 05:12:22 2014

Top Level Domains (TLDs): 782

TLDs with IPv6 nameservers: 752
Percentage of TLDs with IPv6 nameservers: 96.2%

abogado ac academy accountants active actor ad adult ae aero af ag agency airforce al allfinanz alsace am an android ao aq aquarelle ar archi army arpa as asia associates at attorney au auction audio autos aw axa az ba band bar bargains bayern be beer berlin best bf bg bi bid bike bio biz bj black blackfriday bloomberg blue bm bmw bn bnpparibas bo boo boutique br brussels bs bt budapest build builders business buzz bv bw by bz bzh ca cab cal camera camp cancerresearch capetown capital caravan cards care career careers cartier casa cash cat catering cc cd center ceo cern cf cg ch channel cheap christmas chrome church ci citic city cl claims cleaning click clinic clothing club cm cn co coach codes coffee college cologne com community company computer condos construction consulting contractors cooking cool coop country cr credit creditcard cricket crs cruises cu cuisinella cv cw cx cy cymru cz dad dance dating day de deals degree delivery democrat dental dentist desi dev diamonds diet digital direct directory discount dk dm dnp do docs domains doosan durban dvag dz eat ec edu education ee eg email emerck energy engineer engineering enterprises equipment er es esq estate et eu eurovision eus events everbank exchange expert exposed fail farm fashion feedback fi finance financial firmdale fish fishing fitness fj flights florist flsmidth fly fm fo foo forsale foundation fr frl frogans fund furniture futbol ga gal gallery garden gb gbiz gd ge gent gg gh gi gift gifts gives gl glass gle global globo gm gmail gmo gmx gn google gop gov gp gq gr graphics gratis green gripe gs gt gu guide guitars guru gw gy hamburg haus healthcare help here hiphop hiv hk hn holdings holiday homes horse host hosting house how hr ht hu ibm id ie il im immo immobilien in industries info ing ink institute insure int international investments io iq ir irish is it iwc je jetzt jm jo jobs joburg jp juegos kaufen ke kg kh ki kim kitchen kiwi km kn koeln kr krd kred kw kz la lacaixa land latrobe lawyer lb lc lds lease legal lgbt li lidl life lighting limited limo link lk loans london lotto lr ls lt ltda lu luxe luxury lv ly ma madrid maison management mango market marketing mc md me media meet melbourne meme memorial menu mg mh miami mini mk ml mm mn mo mobi moda moe monash money mormon mortgage moscow motorcycles mov mr ms mt mu museum mv mw mx my mz na nagoya name navy nc ne net network neustar new nexus nf ng ngo nhk ninja nl no np nr nra nrw nu nyc nz okinawa om ong onl ooo org organic osaka otsuka ovh pa paris partners parts party pe pg ph pharmacy photo photography photos physio pics pictures pink pizza pl place plumbing pm pn pohl poker porn post pr praxi press pro prod productions prof properties property ps pt pub pw py qa qpon quebec re realtor recipes red rehab reise reisen reit ren rentals repair report republican rest restaurant reviews rich rio rip ro rocks rodeo rs rsvp ru ruhr rw ryukyu sa saarland samsung sarl sb sc sca scb schmidt schule schwarz science scot sd se services sew sexy sg sh shiksha shoes si singles sj sk sky sm sn so social software sohu solar solutions soy space spiegel su supplies supply support surf surgery suzuki sv sx sy sydney systems sz taipei tatar tattoo tax tc td technology tel tf tg th tienda tips tires tirol tj tk tl tm tn to today tokyo tools top town toys tp tr trade training travel trust tt tui tv tw tz ua ug uk university uno uol us uy va vacations vc ve vegas ventures versicherung vet vg vi viajes villas vision vlaanderen vn vodka vote voting voto voyage wales wang watch webcam website wed wedding wf whoswho wien wiki williamhill wme work works world wtc wtf xn--1qqw23a xn--3bst00m xn--3ds443g xn--3e0b707e xn--45brj9c xn--45q11c xn--4gbrim xn--55qw42g xn--55qx5d xn--6frz82g xn--6qq986b3xl xn--80adxhks xn--80ao21a xn--80asehdb xn--80aswg xn--90a3ac xn--c1avg xn--cg4bki xn--clchc0ea0b2g2a9gcd xn--czr694b xn--czrs0t xn--czru2d xn--d1acj3b xn--d1alf xn--fiq228c5hs xn--fiq64b xn--fiqs8s xn--fiqz9s xn--flw351e xn--fpcrj9c3d xn--fzc2c9e2c xn--gecrj9c xn--h2brj9c xn--hxt814e xn--i1b6b1a6a2e xn--io0a7i xn--j1amh xn--j6w193g xn--kprw13d xn--kpry57d xn--kput3i xn--lgbbat1ad8j xn--mgb9awbf xn--mgbaam7a8h xn--mgbab2bd xn--mgbayh7gpa xn--mgbbh1a71e xn--mgbc0a9azcg xn--mgberp4a5d4ar xn--mgbx4cd0ab xn--ngbc5azd xn--node xn--nqv7f xn--nqv7fs00ema xn--o3cw4h xn--ogbpf8fl xn--p1acf xn--p1ai xn--pgbs0dh xn--q9jyb4c xn--qcka1pmc xn--rhqv96g xn--s9brj9c xn--ses554g xn--unup4y xn--vermgensberater-ctb xn--vermgensberatung-pwb xn--vhquv xn--wgbl6a xn--xhq521b xn--xkc2al3hye2a xn--xkc2dl3a5ee0h xn--yfro4i67o xn--zfr164b xxx xyz yachts yandex yoga yokohama youtube yt za zip zm zone

TLDs with nameservers with IPv6 glue in the root zone: 746
Percentage of TLDs that have nameservers with IPv6 glue in the root zone: 95.4%

abogado ac academy accountants active actor ad adult ae aero af ag agency airforce al allfinanz alsace am an android ao aq aquarelle ar archi army arpa as asia associates at attorney au auction audio autos aw axa az ba band bar bargains bayern be beer berlin best bg bi bid bike bio biz bj black blackfriday bloomberg blue bm bmw bn bnpparibas bo boo boutique br brussels bt budapest build builders business buzz bv bw by bz bzh ca cab cal camera camp cancerresearch capetown capital caravan cards care career careers cartier casa cash cat catering cc cd center ceo cern cf cg ch channel cheap christmas chrome church ci citic city cl claims cleaning click clinic clothing club cm cn co coach codes coffee college cologne com community company computer condos construction consulting contractors cooking cool country cr credit creditcard cricket crs cruises cu cuisinella cv cw cx cy cymru cz dad dance dating day de deals degree delivery democrat dental dentist desi dev diamonds diet digital direct directory discount dk dm dnp do docs domains doosan durban dvag dz eat ec edu education ee eg email emerck energy engineer engineering enterprises equipment er es esq estate et eu eurovision eus events everbank exchange expert exposed fail farm fashion feedback fi finance financial firmdale fish fishing fitness fj flights florist flsmidth fly fm fo foo forsale foundation fr frl frogans fund furniture futbol ga gal gallery garden gb gbiz gd ge gent gg gh gi gift gifts gives gl glass gle global globo gm gmail gmo gmx gn google gop gov gp gq gr graphics gratis green gripe gs gt gu guide guitars guru gw gy hamburg haus healthcare help here hiphop hiv hk hn holdings holiday homes horse host hosting house how hr ht hu ibm id ie il im immo immobilien in industries info ing ink institute insure int international investments io iq ir irish is it iwc je jetzt jm jo jobs joburg jp juegos kaufen ke kg kh ki kim kitchen kiwi km kn koeln kr krd kred kw kz la lacaixa land latrobe lawyer lb lc lds lease legal lgbt li lidl life lighting limited limo link lk loans london lotto lr ls lt ltda lu luxe luxury lv ly ma madrid maison management mango market marketing mc md me media meet melbourne meme memorial menu mg miami mini mk ml mm mn mo mobi moda moe monash money mormon mortgage moscow motorcycles mov mr ms mt mu museum mw mx my mz na nagoya name navy nc ne net network neustar new nexus nf ng ngo nhk ninja nl no np nr nra nrw nu nyc nz okinawa om ong onl ooo org organic osaka otsuka ovh pa paris partners parts party pe pg ph pharmacy photo photography photos physio pics pictures pink pizza pl place plumbing pm pn pohl poker porn post pr praxi press pro prod productions prof properties property ps pt pub pw py qa qpon quebec re realtor recipes red rehab reise reisen reit ren rentals repair report republican rest restaurant reviews rich rio rip ro rocks rodeo rs rsvp ru ruhr rw ryukyu sa saarland samsung sarl sb sc sca scb schmidt schule schwarz science scot sd se services sew sexy sg sh shiksha shoes si singles sj sk sky sm sn so social software sohu solar solutions soy space spiegel su supplies supply support surf surgery suzuki sv sx sy sydney systems sz taipei tatar tattoo tax tc td technology tel tf tg th tienda tips tires tirol tj tk tl tm tn to today tokyo tools top town toys tp tr trade training travel trust tt tui tv tw tz ua ug uk university uno uol us uy va vacations vc ve vegas ventures versicherung vet vg vi viajes villas vision vlaanderen vn vodka vote voting voto voyage wales wang watch webcam website wed wedding wf whoswho wien wiki williamhill wme work works world wtc wtf xn--1qqw23a xn--3bst00m xn--3ds443g xn--3e0b707e xn--45brj9c xn--45q11c xn--4gbrim xn--55qw42g xn--55qx5d xn--6frz82g xn--6qq986b3xl xn--80adxhks xn--80ao21a xn--80asehdb xn--80aswg xn--90a3ac xn--c1avg xn--cg4bki xn--clchc0ea0b2g2a9gcd xn--czr694b xn--czrs0t xn--czru2d xn--d1acj3b xn--d1alf xn--fiq228c5hs xn--fiq64b xn--fiqs8s xn--fiqz9s xn--flw351e xn--fpcrj9c3d xn--fzc2c9e2c xn--gecrj9c xn--h2brj9c xn--hxt814e xn--i1b6b1a6a2e xn--io0a7i xn--j1amh xn--j6w193g xn--kprw13d xn--kpry57d xn--kput3i xn--mgb9awbf xn--mgbaam7a8h xn--mgbab2bd xn--mgbayh7gpa xn--mgbbh1a71e xn--mgbc0a9azcg xn--mgberp4a5d4ar xn--mgbx4cd0ab xn--ngbc5azd xn--node xn--nqv7f xn--nqv7fs00ema xn--o3cw4h xn--ogbpf8fl xn--p1acf xn--p1ai xn--pgbs0dh xn--q9jyb4c xn--qcka1pmc xn--rhqv96g xn--s9brj9c xn--ses554g xn--unup4y xn--vermgensberater-ctb xn--vermgensberatung-pwb xn--vhquv xn--wgbl6a xn--xhq521b xn--xkc2al3hye2a xn--xkc2dl3a5ee0h xn--yfro4i67o xn--zfr164b xxx xyz yachts yandex yoga yokohama youtube yt za zip zm zone

Registered domains with AAAA records

Generated by querying for A (IPv4) and AAAA (IPv6) records for all domains in the listed TLDs (top level domains). Demonstrates growing use of AAAA records for the primary domain name of websites and other Internet services. (Note: we would like to add any TLDs that will allow us access for daily downloads.)
     TLD   domains         A      AAAA    A-glue AAAA-glue                downloaded                   processed
     com 115398676 102894963   2816645   2149682      8806  (Fri Dec 19 00:52:43 2014)  (Fri Dec 19 05:05:29 2014)
     net  15037479  12738839    471516    400526      6495  (Fri Dec 19 00:55:56 2014)  (Fri Dec 19 05:05:44 2014)
      de  13155766   9259792   2391789    398186       114  (Wed Jan 20 01:22:39 2010)  (Fri Dec 19 05:06:10 2014)
     org  10488960   9290408    337510    365995      3801  (Fri Dec 19 00:56:25 2014)  (Fri Dec 19 05:05:51 2014)
    info   5486313   4841593    282286    164548      1196  (Fri Dec 19 00:56:56 2014)  (Fri Dec 19 05:05:54 2014)
     biz   2388218   2015324     83702     42292       241  (Fri Dec 19 00:58:18 2014)  (Fri Dec 19 05:05:56 2014)
      us   1774233   1567588     24222     33323       241  (Fri Dec 19 00:58:08 2014)  (Fri Dec 19 05:05:57 2014)
      ca   1420247    804976      5356     16053        17  (Wed Jul 14 01:06:25 2010)  (Fri Dec 19 05:06:01 2014)
    mobi    829197    689542     13446     10475        65  (Fri Dec 19 00:57:49 2014)  (Fri Dec 19 05:05:55 2014)
      me    714003    436768     12049     22098       201  (Thu Sep 19 02:15:53 2013)  (Fri Dec 19 05:06:14 2014)
      hu    618473    429569      3607     30735       128  (Wed Jan  2 01:33:31 2013)  (Fri Dec 19 05:06:12 2014)
      ir    428763    199369       801     18303        13  (Thu Jan  9 00:39:15 2014)  (Fri Dec 19 05:06:13 2014)
      no    422532    242109      2599      1383         3  (Fri Apr  3 02:10:44 2009)  (Fri Dec 19 05:06:15 2014)
    asia    278355    206429      5068      8939        78  (Fri Dec 19 00:58:34 2014)  (Fri Dec 19 05:05:58 2014)
      sk    261188    170257     18187      3687        34  (Fri Apr 27 00:58:22 2012)  (Fri Dec 19 05:06:18 2014)
      ie    196476    174045      1748       825        36  (Fri Dec 19 01:05:06 2014)  (Fri Dec 19 05:06:12 2014)
      pt    148142     67762       524      7451        58  (Tue Mar 22 01:43:34 2011)  (Fri Dec 19 05:06:16 2014)
     tel    132986    124618         0       367        10  (Fri Dec 19 01:02:08 2014)  (Fri Dec 19 05:05:58 2014)
      hk    116765     74753       770      2263        37  (Tue Aug 19 01:39:10 2014)  (Fri Dec 19 05:06:12 2014)
     xxx    106240     90603       101       168         3  (Mon Jan  2 01:49:20 2012)  (Fri Dec 19 05:06:19 2014)
      pk     44768     27298       207      2044         0  (Fri Jul 12 01:05:38 2013)  (Fri Dec 19 05:06:16 2014)
      kz     42493     22762       375     65009         0  (Sun Apr 18 01:14:46 2010)  (Fri Dec 19 05:06:13 2014)
    aero     33553      6996       175       533         1  (Fri Dec 19 00:57:20 2014)  (Fri Dec 19 05:05:54 2014)
xn--j6w193g     32706      9828       146        34         3  (Tue Aug 19 01:43:09 2014)  (Fri Dec 19 05:06:19 2014)
      ma     31415      6856        51     33934         0  (Wed Dec  9 02:20:47 2009)  (Fri Dec 19 05:06:14 2014)
      bg     24721     15549        90      1858        20  (Wed Jan 12 01:40:00 2011)  (Fri Dec 19 05:05:59 2014)
      ge     17602     12080       129       522         1  (Sat Sep 21 00:43:44 2013)  (Fri Dec 19 05:06:11 2014)
      tc     16461      5775        33       195         1  (Sat Feb  9 00:52:50 2013)  (Fri Dec 19 05:06:19 2014)
      to     15570     12634       525       999         0  (Fri Dec 19 01:07:49 2014)  (Fri Dec 19 05:06:19 2014)
      am     15428      6959       143       632         7  (Fri Oct 29 00:33:47 2010)  (Fri Dec 19 05:05:59 2014)
      ac     15116     13066        94       233         0  (Fri Oct 22 00:35:54 2010)  (Fri Dec 19 05:05:58 2014)
      gt     14238     10645       101       409         3  (Fri Dec 19 01:05:10 2014)  (Fri Dec 19 05:06:11 2014)
      ag     14031      6949       362       257         0  (Tue Nov 30 01:39:20 2010)  (Fri Dec 19 05:05:58 2014)
      ly     12026      5488        58       119         0  (Sun Jul  8 01:43:02 2012)  (Fri Dec 19 05:06:14 2014)
      cm     12024      7851        67       147         1  (Tue Oct  7 00:36:43 2014)  (Fri Dec 19 05:06:01 2014)
      uz     11329      5359        75      1811         0  (Mon Jul  4 01:49:14 2011)  (Fri Dec 19 05:06:19 2014)
      az     11103      6618       114      6422        16  (Sun Jan 22 01:41:03 2012)  (Fri Dec 19 05:05:59 2014)
xn--j1amh      9620      8432       949        42         2  (Fri Dec 19 01:09:31 2014)  (Fri Dec 19 05:06:19 2014)
      ba      9572      5668       258      7697         0  (Sat Jun  5 01:05:06 2010)  (Fri Dec 19 05:05:59 2014)
      pe      8772      3424        32       178         0  (Wed Feb 10 01:19:43 2010)  (Fri Dec 19 05:06:16 2014)
      lk      8512      4513        52     12198        16  (Sat Sep  3 01:48:08 2011)  (Fri Dec 19 05:06:14 2014)
      ec      8469      3507        45       129         4  (Fri Aug  5 01:49:25 2011)  (Fri Dec 19 05:06:11 2014)
      vg      8402      3381        51       131         1  (Thu Jan 31 00:48:52 2013)  (Fri Dec 19 05:06:19 2014)
      bm      8109      2327         5       125         0  (Thu Nov 22 01:46:29 2012)  (Fri Dec 19 05:06:00 2014)
    coop      7823      5844        61       396         0  (Fri Dec 19 01:02:05 2014)  (Fri Dec 19 05:05:58 2014)
      sv      7513      5077        24      3145         0  (Fri Dec 19 01:07:43 2014)  (Fri Dec 19 05:06:18 2014)
      tj      7025      4769       168       113         0  (Fri Dec 19 01:07:49 2014)  (Fri Dec 19 05:06:19 2014)
      al      6967      3265        25        64         0  (Sat Apr 21 00:39:08 2012)  (Fri Dec 19 05:05:58 2014)
      jm      6380      3056         6      6857         0  (Tue Dec  6 01:43:11 2011)  (Fri Dec 19 05:06:13 2014)
      cr      5880      2735        40       292         0  (Mon Jul 23 02:05:13 2012)  (Fri Dec 19 05:06:01 2014)
      tn      5621      2011        30        16         1  (Wed May  9 00:46:58 2012)  (Fri Dec 19 05:06:19 2014)
      do      5276      2716        45       108         1  (Thu Apr 11 01:39:48 2013)  (Fri Dec 19 05:06:11 2014)
      ps      4890      2128        33       100         0  (Mon Nov  1 00:40:56 2010)  (Fri Dec 19 05:06:16 2014)
      kg      4774      2614        50       289         0  (Fri Dec  9 01:42:34 2011)  (Fri Dec 19 05:06:13 2014)
      hn      4742      2808        40       163         1  (Mon Mar 18 00:44:42 2013)  (Fri Dec 19 05:06:12 2014)
      gl      4630      2089        82        17         0  (Thu Aug  4 01:49:07 2011)  (Fri Dec 19 05:06:11 2014)
      ci      4474      3206        31        72         0  (Fri Dec 19 01:03:24 2014)  (Fri Dec 19 05:06:01 2014)
      sc      4273      3253        72       252        15  (Fri Dec 19 01:07:24 2014)  (Fri Dec 19 05:06:16 2014)
      gd      4257      1637        59        26         1  (Wed Feb 20 00:34:32 2013)  (Fri Dec 19 05:06:11 2014)
      tm      3788      2215        31        42         0  (Fri Oct 22 00:43:17 2010)  (Fri Dec 19 05:06:19 2014)
      sn      3562      1215        10       289         1  (Fri Dec  2 01:44:58 2011)  (Fri Dec 19 05:06:18 2014)
capetown      3425      2732        24         1         1  (Fri Dec 19 01:02:57 2014)  (Fri Dec 19 05:06:01 2014)
      io      3421      2318       177        98         0  (Fri Oct 22 00:38:53 2010)  (Fri Dec 19 05:06:13 2014)
      ug      3258      1264        14        75         0  (Mon Nov  9 02:12:10 2009)  (Fri Dec 19 05:06:19 2014)
      fo      3118      2368       113        20         0  (Wed Apr 17 01:40:22 2013)  (Fri Dec 19 05:06:11 2014)
      sh      3029      1595        89        85         2  (Fri Oct 22 00:42:38 2010)  (Fri Dec 19 05:06:16 2014)
      je      2730      1187        25        19         0  (Fri Jul 30 01:07:12 2010)  (Fri Dec 19 05:06:13 2014)
  joburg      2479      1821        22         1         1  (Fri Dec 19 01:05:16 2014)  (Fri Dec 19 05:06:13 2014)
      mc      2442      1051         7        27         0  (Fri Dec 19 01:05:58 2014)  (Fri Dec 19 05:06:14 2014)
      tt      2374      1269         8        53         2  (Mon Oct  3 01:47:28 2011)  (Fri Dec 19 05:06:19 2014)
      bs      2300      1092         6        82         0  (Wed Apr  6 02:05:29 2011)  (Fri Dec 19 05:06:00 2014)
      gg      2287      1176        17         9         0  (Fri Jul 30 01:06:34 2010)  (Fri Dec 19 05:06:11 2014)
      gy      2215      1704        52        40         0  (Fri Dec 19 01:04:41 2014)  (Fri Dec 19 05:06:11 2014)
      lc      1810       456         8        48         0  (Wed Oct 27 00:55:12 2010)  (Fri Dec 19 05:06:14 2014)
  durban      1762      1231        23         1         1  (Fri Dec 19 01:03:51 2014)  (Fri Dec 19 05:06:11 2014)
      pg      1750       892         2        32         0  (Fri Dec 19 01:06:43 2014)  (Fri Dec 19 05:06:16 2014)
      mw      1629       812         6         0         0  (Fri Dec 19 01:06:28 2014)  (Fri Dec 19 05:06:15 2014)
      jo      1559       883         7        39         0  (Fri Nov 18 01:45:28 2011)  (Fri Dec 19 05:06:13 2014)
      bi      1449      1001        17        17         1  (Fri Dec 19 01:02:40 2014)  (Fri Dec 19 05:06:00 2014)
      sr      1203       555         2        13         0  (Thu Oct 15 02:27:19 2009)  (Fri Dec 19 05:06:18 2014)
      sl      1173       787        18        44         0  (Fri Dec 19 01:07:27 2014)  (Fri Dec 19 05:06:18 2014)
      bf      1013       427         9        95         0  (Fri Dec 19 01:02:35 2014)  (Fri Dec 19 05:05:59 2014)
      bb       844       476         2         2         0  (Fri Dec 19 01:02:35 2014)  (Fri Dec 19 05:05:59 2014)
      cv       834       564         9       184         8  (Fri Apr 27 00:55:54 2012)  (Fri Dec 19 05:06:02 2014)
      cu       809       223         6       653         8  (Mon Jan 24 01:48:44 2011)  (Fri Dec 19 05:06:01 2014)
      an       774       351         2        45         0  (Fri Dec 19 01:02:17 2014)  (Fri Dec 19 05:05:59 2014)
      nf       738       415         4        12         0  (Thu Dec  9 01:43:21 2010)  (Fri Dec 19 05:06:15 2014)
      aw       616       278         1         3         0  (Fri Mar  8 01:38:55 2013)  (Fri Dec 19 05:05:59 2014)
      cw       595       351         8        32         0  (Fri Dec 19 01:03:41 2014)  (Fri Dec 19 05:06:02 2014)
      mo       425       246         3        99         2  (Fri Dec 19 01:06:08 2014)  (Fri Dec 19 05:06:15 2014)
      bj       366       197         7        38         0  (Wed Feb 15 01:41:41 2012)  (Fri Dec 19 05:06:00 2014)
      ao       350       161         6       168         2  (Thu Aug 21 00:38:28 2014)  (Fri Dec 19 05:05:59 2014)
      ga       350        64         1       514         0  (Wed Oct 26 01:47:11 2011)  (Fri Dec 19 05:06:11 2014)
      pf       289       191         3        35         0  (Fri Nov 28 00:44:06 2014)  (Fri Dec 19 05:06:16 2014)
      ki       283       123         1         0         0  (Wed Feb 15 01:43:02 2012)  (Fri Dec 19 05:06:13 2014)
      na       226        66         2         6         0  (Mon Aug 15 01:48:26 2011)  (Fri Dec 19 05:06:15 2014)
      ni       199       107         2         6         0  (Fri Dec 19 01:06:36 2014)  (Fri Dec 19 05:06:15 2014)
     int       188       124         3        71         1  (Fri Dec 19 01:05:10 2014)  (Fri Dec 19 05:06:12 2014)
      ne       149        49         5        82         0  (Sat May  5 01:50:39 2012)  (Fri Dec 19 05:06:15 2014)
      iq       149        82         2        14         0  (Thu Apr 25 00:36:24 2013)  (Fri Dec 19 05:06:13 2014)
      ml       117        58         1        24         0  (Wed Mar 27 00:37:25 2013)  (Fri Dec 19 05:06:15 2014)
      au        20         1         1        27         4  (Fri Apr  3 01:55:15 2009)  (Fri Dec 19 05:05:59 2014)
    arpa        10         1         0        12        12  (Fri Dec 19 00:30:05 2014)  (Fri Dec 19 05:05:59 2014)

   total 169975684 146614659   6477585   3828024     21718

Total registered domains with AAAA records: 6477585

This tells you the number of registered domains that have added IPv6 for their primary domain, for the set of TLDs above, which is a partial listing based on what TLDs we could get access to. It does not include subdomains i.e. ipv6.google.com, which means our number is a lower bound and that the number of IPv6 enabled domains is even higher.

Eventually the really important number here is the total number of domains returning AAAA records. However, right now a large amount of the domains included in this number are the result of SEDO (search engine domain optimization) parking operations. By looking at the gradual increase in the people that have AAAA glue in the TLD zone files for their authorative nameservers we can tell that the trend of individual companies enabling IPv6 for their websites and other infrastructure is upwards.

Top 1000 Usenet Servers with IPv6 support

Generated by parsing the top 1000 usenet servers (from Top 1000 Usenet Servers) and querying for A and AAAA records. Note: Due to how the usenet protocol works not every listed usenet server has a direct addresses (some usenet server names are not fully qualified domain names).

Top 1000 Downloaded: Sat Nov 5 20:30:42 2011
Top 1000 Processed: Fri Dec 19 05:28:53 2014

Top 1000 Usenet Servers: 1000
Top 1000 Usenet Servers with a direct IPv4 address: 604
Top 1000 Usenet Servers with a direct IPv6 address: 126
Percentage of top 1000 Usenet Servers with direct addresses with IPv6 support: 20.86%

Networks Running IPv6

We can measure the percentage of networks running IPv6 by comparing the set of ASes in the IPv6 routing table to those in the combined set of IPv4 and IPv6.

IPv4 and IPv6 RIBs Last Parsed: Fri Dec 19 01:17:41 PST 2014

IPv4 ASes: 49177

IPv6 ASes: 9194

ASes using only IPv4: 40148

ASes using only IPv6: 165

ASes using IPv4 and IPv6: 9029

ASes using IPv4 or IPv6: 49342

Percentage of ASes (IPv4 or IPv6) running IPv6: 18.6%

IPv6 rDNS Nameservers running IPv6

One amusing measure of IPv6 deployment to ask the question: What percentage of IPv6 reverse DNS servers are reachable via IPv6?

(ping tests and dns queries run from a server on Hurricane Electric's IPv4 and IPv6 backbone in Fremont, California.)

IPv6 rDNS Nameservers Last Polled: Thu Dec 18 13:25:56 PST 2014

IPv6 Prefixes: 20039

IPv6 rDNS Nameservers: 9413

IPv6 rDNS Nameservers with an IPv4 address: 9222

IPv6 rDNS Nameservers with an IPv6 address: 5100

IPv6 rDNS Nameservers reachable via IPv4 (ping or dns): 7539

IPv6 rDNS Nameservers reachable via IPv6 (ping or dns): 4103

IPv6 rDNS Nameservers reachable via IPv4 or IPv6: 7935

IPv6 rDNS Nameservers reachable via IPv4 and IPv6: 3707

Percentage reachable IPv6 rDNS Nameservers reachable via IPv6: 51.7%

IPv6 Performance

Actually, the reason we looked at IPv6 reverse DNS servers was to get some hosts on both IPv6 and IPv4 so that we can compare IPv6 vs IPv4 latency.

IPv6 rDNS Nameservers where IPv6 is faster than IPv4 (by more than 1ms): 2090

IPv6 rDNS Nameservers where IPv4 and IPv6 are the same speed (within 1ms): 710

IPv6 rDNS Nameservers where IPv4 is faster than IPv6 (by more than 1ms): 907

IPv6 rDNS nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 2800

Percentage of IPv6 rDNS Nameservers where IPv6 is as fast or faster than IPv4 (within 1ms): 75.5%

Top Websites Running IPv6

A very quick way to measure IPv6 deployment for websites is just to check for a AAAA record in DNS.

Alexa provides an approximate list of the most popular sites on the web.

In the report below, the raw domain is the base domain, such as free.fr, which does not have an AAAA record (at the time of this writing. However www.free.fr *does* have a AAAA record. So we check both.

Another convention is to add an AAAA using ipv6 as a subdomain, i.e. ipv6.google.com. The reason so many domains show up as having A records for "ipv6." subdomains is because many domains use wildcard records in DNS which respond to queries for any subdomain.

Alexa Top 1 Million Domains Downloaded: Fri Dec 19 00:00:08 2014
Alexa Top 1 Million Domains Processed: Fri Dec 19 00:37:24 2014

Alexa 1M raw domains: 1000000
Alexa 1M raw with a direct IPv4 address: 948993
Alexa 1M raw with a direct IPv6 address: 54312

(top 100)
wikipedia.org 2620:0:863:ed1a::1
facebook.com 2a03:2880:2130:cf05:face:b00c:0:1
flipkart.com 2001:df0:23e:9002::15
tubecup.com 2400:cb00:2048:1::a29f:fe16
youm7.com 2400:cb00:2048:1::6810:1074
fbcdn.net 2a03:2880:2130:cf05:face:b00c:0:1
office.com 2a01:111:f406:400::17
mozilla.org 2620:101:8008:5::2:1
wiktionary.org 2620:0:863:ed1a::1
youtube.com 2607:f8b0:4005:800::1004
google.com 2607:f8b0:4005:800::100e
google.co.in 2607:f8b0:4007:807::2003
google.de 2607:f8b0:400a:806::2003
google.co.uk 2607:f8b0:4005:802::100f
blogspot.com 2607:f8b0:400e:c03::bf
google.com.br 2001:4860:400b:c01::5e
google.com.hk 2607:f8b0:4010:801::1017
google.com.au 2607:f8b0:4010:801::1018
clickyab.com 2400:cb00:2048:1::6ca2:ccd3
google.co.jp 2001:4860:400b:c01::5e
google.ru 2a00:1450:4017:802::2003
google.fr 2a00:1450:4001:802::101f
google.com.tr 2607:f8b0:400a:806::2003
google.ca 2607:f8b0:4000:80b::2003
free-tv-video-online.me 2400:cb00:2048:1::681c:b18
google.es 2607:f8b0:4005:802::1018
blogger.com 2607:f8b0:400e:c01::bf
gmail.com 2607:f8b0:4005:800::1016
google.com.eg 2607:f8b0:4005:802::101f
google.com.tw 2607:f8b0:4000:80b::2003
blogspot.in 2607:f8b0:4009:80b::2009
albawabhnews.com 2400:cb00:2048:1::681c:184c
google.co.id 2607:f8b0:4010:801::1017
google.co.th 2a00:1450:4001:802::100f
google.gr 2607:f8b0:4005:802::1018
google.com.ua 2001:4860:400b:c01::5e
google.com.ar 2607:f8b0:4005:802::1017
google.com.my 2607:f8b0:400a:803::1018
google.com.vn 2607:f8b0:4009:805::101f
google.be 2607:f8b0:4005:802::1018
google.com.ph 2607:f8b0:4005:802::1018
google.at 2607:f8b0:4005:800::101f
google.com.ng 2607:f8b0:4010:801::100f
google.com.sg 2607:f8b0:4010:801::101f
google.se 2607:f8b0:4007:807::2003
rutor.org 2001:470:25:c7::2
google.com.co 2607:f8b0:4005:802::1017
google.cl 2607:f8b0:4005:802::100f
google.com.mx 2607:f8b0:4009:805::1017
google.com.bd 2607:f8b0:4010:801::1017
eztv.it 2400:cb00:2048:1::681c:1c29
google.no 2607:f8b0:4010:801::101f
google.ch 2607:f8b0:4005:802::1017
google.com.pe 2607:f8b0:4010:801::1018
google.co.hu 2607:f8b0:4010:801::101f
google.cz 2607:f8b0:4010:801::1018
google.az 2607:f8b0:400e:c03::93
google.co.il 2607:f8b0:400a:807::2003
google.fi 2607:f8b0:4005:802::100f
stanford.edu 2607:f6d0:0:925a::ab43:d7c8
google.ie 2607:f8b0:4005:802::1017
fdrmx.com 2400:cb00:2048:1::681c:115
popcash.net 2400:cb00:2048:1::a29f:f325
blogspot.mx 2607:f8b0:400a:806::2009
berkeley.edu 2607:f140:0:81::f
google.sk 2607:f8b0:4010:801::100f
hotukdeals.com 2400:cb00:2048:1::6814:e72
zone-telechargement.com 2a03:5180:0:7::2
thisav.com 2400:cb00:2048:1::8d65:793f
google.kz 2607:f8b0:4010:801::1013
blogspot.com.tr 2607:f8b0:400a:807::2009
android.com 2607:f8b0:400e:c01::69
blogspot.jp 2607:f8b0:400d:c04::bf
google.co.nz 2607:f8b0:4005:802::100f
cloudflare.com 2400:cb00:2048:1::c629:d49d
google.bg 2607:f8b0:4010:801::101f
spankbang.com 2400:cb00:2048:1::c629:c912
todayhumor.co.kr 2400:cb00:2048:1::6814:424
stargazete.com 2400:cb00:2048:1::6814:1e6c
google.hr 2001:4860:400b:c01::5e
vodlocker.com 2400:cb00:2048:1::a29f:f6e0
google.com.kw 2607:f8b0:4005:800::100f
google.lt 2a00:1450:4001:802::100f
google.com.do 2607:f8b0:4005:802::100f
ijreview.com 2400:cb00:2048:1::6810:42b
fbsbx.com 2a03:2880:2130:cf05:face:b00c:0:1
goo.gl 2607:f8b0:4010:801::1002
thisblewmymind.com 2400:cb00:2048:1::681c:126f
kissanime.com 2400:cb00:2048:1::6ca2:c915
doubleclick.com 2607:f8b0:400e:c02::65
blogspot.de 2607:f8b0:4000:80a::2009
serviporno.com 2400:cb00:2048:1::a29f:f0b6
4cdn.org 2400:cb00:2048:1::8d65:731a
desidime.com 2a01:7e00:1::b24f:afce
google.iq 2607:f8b0:400e:c02::5e
google.si 2607:f8b0:400a:806::2003
blogspot.tw 2607:f8b0:400e:c01::bf
draftkings.com 2400:cb00:2048:1::6814:1602
urdupoint.com 2400:cb00:2048:1::a29f:f2d5
kwejk.pl 2400:cb00:2048:1::a29f:fd26

www. + Alexa 1M domains: 1000000
www. + Alexa 1M with a direct IPv4 address: 969948
www. + Alexa 1M with a direct IPv6 address: 69768

(top 100)
www.facebook.com 2a03:2880:f009:1:face:b00c:0:1
www.wikipedia.org 2620:0:863:ed1a::1
www.microsoft.com 2600:1406:1a:399::2768
www.wikimedia.org 2620:0:863:ed1a::1
www.flipkart.com 2001:df0:23e:9002::15
www.uol.com.br 2804:49c:319:430::100
www.usps.com 2600:1406:1a:396::1bf2
www.mozilla.org 2620:101:8008:5::2:1
www.comcast.net 2600:1406:34::b819:389c
www.youm7.com 2400:cb00:2048:1::6810:1374
www.att.com 2600:1406:1a:39b::90e
www.tubecup.com 2400:cb00:2048:1::a29f:fc16
www.fbcdn.net 2a03:2880:20:4f06:face:b00c:0:1
www.office.com 2a01:111:f406:9400::17
www.albawabhnews.com 2400:cb00:2048:1::681c:184c
www.free-tv-video-online.me 2400:cb00:2048:1::681c:b18
www.popcash.net 2400:cb00:2048:1::a29f:f325
www.google.co.in 2607:f8b0:4007:807::2003
www.google.de 2607:f8b0:4007:807::2003
www.google.co.jp 2001:4860:400b:c01::5e
www.blogspot.com 2607:f8b0:400e:c03::bf
www.google.com 2607:f8b0:4005:802::1010
www.google.com.tr 2607:f8b0:4007:807::2003
www.google.com.br 2607:f8b0:4010:801::100f
www.apple.com 2600:1406:1a:3a2::c77
www.google.ru 2a00:1450:400c:c04::5e
www.google.com.hk 2607:f8b0:4010:801::1018
www.google.com.mx 2607:f8b0:4009:805::1018
www.google.ca 2607:f8b0:400e:c04::5e
www.blogspot.in 2607:f8b0:4009:80b::2009
www.gmail.com 2607:f8b0:4005:800::1015
www.blogger.com 2607:f8b0:400e:c01::bf
www.google.com.eg 2607:f8b0:4010:801::101f
www.google.fr 2a00:1450:400c:c04::5e
www.google.es 2a00:1450:4010:c01::5e
www.google.co.th 2a00:1450:400c:c04::5e
www.googleusercontent.com 2607:f8b0:4000:808::100b
www.google.com.ar 2607:f8b0:4010:801::100f
www.google.com.ua 2607:f8b0:4010:801::100f
www.google.co.za 2607:f8b0:400e:c02::5e
www.google.be 2607:f8b0:4010:801::1018
www.google.com.vn 2607:f8b0:4009:805::1018
www.google.com.au 2607:f8b0:4005:800::101f
www.google.at 2607:f8b0:4005:802::1018
www.google.ro 2607:f8b0:4005:800::1018
www.nasa.gov 2607:f4e8:110:a000::e
www.aol.com 2001:4b0:1668:2211:1::1
www.google.com.ng 2607:f8b0:4001:c08::5e
www.google.com.pe 2607:f8b0:4005:800::101f
www.google.cn 2607:f8b0:400e:c01::a0
www.google.com.bd 2607:f8b0:4005:800::1017
www.google.ch 2607:f8b0:4001:c01::5e
www.google.co.uk 2607:f8b0:4010:801::101f
www.google.se 2607:f8b0:4007:807::2003
www.google.co.hu 2607:f8b0:400e:c01::5e
www.google.cl 2607:f8b0:4010:801::1018
www.google.fi 2607:f8b0:4010:801::1018
www.google.az 2607:f8b0:400e:c03::5e
www.google.cz 2607:f8b0:4005:800::100f
www.eztv.it 2400:cb00:2048:1::681c:1c29
www.google.com.co 2607:f8b0:4010:801::100f
www.google.co.il 2607:f8b0:400e:c02::5e
www.teepr.com 2607:f8b0:400e:c01::79
www.google.ie 2607:f8b0:4010:801::100f
www.google.no 2607:f8b0:4001:c08::5e
www.blogspot.tw 2607:f8b0:400e:c01::bf
www.google.sk 2607:f8b0:4005:800::1017
www.google.gr 2607:f8b0:4005:802::101f
www.blogspot.mx 2607:f8b0:400a:806::2009
www.zone-telechargement.com 2a03:5180:0:7::2
www.hotukdeals.com 2400:cb00:2048:1::6814:f72
www.android.com 2607:f8b0:4010:801::1005
www.bab.la 2400:cb00:2048:1::681c:161e
www.youtube.com 2607:f8b0:4005:800::1008
www.clickyab.com 2400:cb00:2048:1::6ca2:ccd3
www.drugs.com 2600:1406:1a:38e::19b8
www.thisav.com 2400:cb00:2048:1::8d65:793d
www.google.co.nz 2607:f8b0:4010:801::1017
www.hdzog.com 2400:cb00:2048:1::c629:b982
www.mapquest.com 2001:4b0:1668:3c06:1::4
www.cloudflare.com 2400:cb00:2048:1::c629:d6a3
www.blogspot.de 2607:f8b0:4000:80a::2009
www.google.bg 2404:6800:4003:805::101f
www.todayhumor.co.kr 2400:cb00:2048:1::6814:424
www.stargazete.com 2400:cb00:2048:1::6814:46d
www.spankbang.com 2400:cb00:2048:1::c629:c812
www.4cdn.org 2400:cb00:2048:1::be5d:f719
www.google.by 2607:f8b0:4010:801::100f
www.vodlocker.com 2400:cb00:2048:1::a29f:f7e0
www.globalinsidernews.com 2400:cb00:2048:1::681c:1756
www.ijreview.com 2400:cb00:2048:1::6810:32b
www.oneindia.com 2001:4860:400b:c01::79
www.google.lt 2a00:1450:4013:c00::5e
www.google.com.do 2607:f8b0:4010:801::100f
www.fbsbx.com 2a03:2880:20:4f06:face:b00c:0:1
www.alegra.me 2400:cb00:2048:1::681c:1773
www.serviporno.com 2400:cb00:2048:1::a29f:f0b6
www.desidime.com 2a01:7e00:1::b24f:afce
www.imagetwist.com 2400:cb00:2048:1::a29f:f1f4
www.google.si 2607:f8b0:4007:807::2003

ipv6. + Alexa 1M domains: 1000000
ipv6. + Alexa 1M with a direct IPv4 address: 222845
ipv6. + Alexa 1M with a direct IPv6 address: 25787

(top 100)
ipv6.scribd.com 2607:f0d0:1004:2::3
ipv6.yts.re 2001:4c48:2:8400:dead:beef:c0de:face
ipv6.flipkart.com 2001:df0:23e:9002::15
ipv6.google.com 2607:f8b0:4005:802::1001
ipv6.rutor.org 2001:470:25:c7::2
ipv6.comcast.net 2001:2031:0:4::d1aa:5bc2
ipv6.google.co.jp 2001:4860:400b:c01::64
ipv6.blogspot.com 2607:f8b0:4005:802::100c
ipv6.youm7.com 2400:cb00:2048:1::6810:1274
ipv6.mozilla.org 2620:101:8008:5::2:8
ipv6.tickld.com 2400:cb00:2048:1::c629:d041
ipv6.netflix.com 2620:0:ef0:13::20
ipv6.nasa.gov 2600:1406:3::b81c:bcd0
ipv6.firstpost.com 2600:1406:3::b81c:bc98
ipv6.cnn.com 2620:100:e000::8001
ipv6.berkeley.edu 2607:f140:ffff:ffff::80
ipv6.blogspot.jp 2607:f8b0:4004:803::100a
ipv6.googleusercontent.com 2607:f8b0:4000:809::100a
ipv6.blogspot.com.tr 2607:f8b0:400a:807::2001
ipv6.bab.la 2400:cb00:2048:1::681c:161e
ipv6.spankbang.com 2400:cb00:2048:1::c629:c812
ipv6.fbsbx.com 2a03:2880:20:4f06:face:b00c:0:1
ipv6.google.com.hk 2607:f8b0:4010:801::1004
ipv6.blogspot.kr 2607:f8b0:4010:801::100b
ipv6.ovh.com 2001:41d0:1:1b00:213:186:33:34
ipv6.ebay.com 2620:0:503:429::feed:bacc
ipv6.google.cn 2607:f8b0:400e:c01::8b
ipv6.blogspot.mx 2607:f8b0:4007:807::2001
ipv6.t-mobile.com 2607:fb90:beef:c137::3
ipv6.blogspot.ru 2607:f8b0:4005:800::100a
ipv6.beatport.com 2620:56:8000:4000:0:1:1:1
ipv6.blogspot.in 2607:f8b0:4009:805::100b
ipv6.lindaikeji.blogspot.com 2607:f8b0:400e:c02::84
ipv6.blogspot.de 2607:f8b0:4000:808::100c
ipv6.bitsnoop.com 2a02:29b8:1925::2
ipv6.uservoice.com 2400:cb00:2048:1::6810:1350
ipv6.storify.com 2400:cb00:2048:1::8d65:73d7
ipv6.miniclip.com 2a02:5f8:1:46d::120
ipv6.w3.org 2001:200:1c0:3601::80:2
ipv6.xkcd.com 2001:4830:120:1::2
ipv6.fasttech.com 2400:cb00:2048:1::8d65:7162
ipv6.blogspot.com.ar 2607:f8b0:400a:803::100a
ipv6.questionablecontent.net 2400:cb00:2048:1::681c:1f44
ipv6.zynga.com 2620:102:8000:200::127
ipv6.redhat.com 2620:52:1:1:209:132:183:181
ipv6.cornell.edu 2620:110:d000:12::50
ipv6.withgoogle.com 2607:f8b0:400e:c04::8d
ipv6.joystiq.com 2001:4b0:1668:2211:1::2
ipv6.blogspot.fi 2607:f8b0:4005:802::100c
ipv6.blogspot.hk 2607:f8b0:4010:801::100c
ipv6.edublogs.org 2400:cb00:2048:1::6810:117
ipv6.teamliquid.net 2001:48c8:1:400::2
ipv6.enom.com 2620:10f:5000:5000::2
ipv6.avaaz.org 2400:cb00:2048:1::8d65:73d5
ipv6.piktochart.com 2400:cb00:2048:1::a29f:f746
ipv6.cocolog-nifty.com 2001:258:8602:432:202:248:45:17
ipv6.stocktwits.com 2400:cb00:2048:1::a29f:feb6
ipv6.googlecode.com 2607:f8b0:400e:c04::52
ipv6.tamu.edu 2606:aa00:3:202::8
ipv6.yandex.ua 2a02:6b8::3
ipv6.yandex.ru 2a02:6b8::3
ipv6.yandex.kz 2a02:6b8::3
ipv6.so.com 240e:83:1::a45d:36fc:59ed
ipv6.bbc.co.uk 2001:4b10:bbc::1
ipv6.plurk.com 2607:f128:47::1:1
ipv6.sex.com 2607:fc10:1:400::82
ipv6.boards.ie 2a01:258:f000:3::108
ipv6.cpanel.net 2620:0:28a0:1528:230:48ff:fece:9f78
ipv6.baidu.com 2400:da00::dbf:0:100
ipv6.akamai.com 2600:1406:34::b819:3875
ipv6.videoyoum7.com 2400:cb00:2048:1::6810:1774
ipv6.ssa.gov 2001:1930:c00::19
ipv6.iu.edu 2001:18e8:2:4e::106
ipv6.cisco.com 2001:420:1201:2::a
ipv6.dealcatcher.com 2400:cb00:2048:1::a29f:f910
ipv6.gazeta.pl 2a02:bd8:1:ffff::1
ipv6.vk.com 2a00:bdc0:3:103:1:0:403:908
ipv6.harvestapp.com 2001:1838:2001:e::178
ipv6.doodle.com 2a02:418:6057::148
ipv6.gatech.edu 2610:148:1f01:8178::50
ipv6.mapquest.com 2001:4b0:1668:2211:1::4
ipv6.streetdirectory.com 2405:2000:fff0::4
ipv6.wareztuga.tv 2400:cb00:2048:1::8d65:7619
ipv6.blogspot.ro 2607:f8b0:4010:801::100a
ipv6.blizzard.com 2620:10b:9006:600:dad3:85ff:fed9:ce24
ipv6.rogers.com 2607:f798:14:501:0:672:3121:171
ipv6.mtsindia.in 2406:5600:7:1::3
ipv6.vk.me 2a00:bdc0:4:10f:1:0:615:100
ipv6.yandex.net 2a02:6b8::3
ipv6.yandex.com 2a02:6b8::242
ipv6.mega.co.nz 2001:978:2:aa::24:2
ipv6.evozi.com 2400:cb00:2048:1::c629:ca0e
ipv6.googlegroups.com 2607:f8b0:400e:c02::89
ipv6.edgesuite.net 2600:1406:3::addf:34f2
ipv6.vt.edu 2001:468:c80:210f:0:1c6:1a85:8564
ipv6.blackberry.com 2607:ffc0:d:1:208:65:75:22
ipv6.uchicago.edu 2001:470:1f10:22f::2
ipv6.googleapis.com 2607:f8b0:400e:c04::5f
ipv6.outlook.com 2a01:111:f400:c00::6
ipv6.frandroid.com 2400:cb00:2048:1::681c:213