AS31230 Slovak University of Technology in Bratislava

Company Website:

http://www.six.sk

Looking Glass:

https://bgp.he.net/lg/31230

Country of Origin:

Internet Exchanges: 2

Prefixes Originated (all): 0
Prefixes Originated (v4): 0
Prefixes Originated (v6): 0

Prefixes Announced (all): 718
Prefixes Announced (v4): 674
Prefixes Announced (v6): 44

RPKI Originated Valid (all): 0
RPKI Originated Valid (v4): 0
RPKI Originated Valid (v6): 0

BGP Peers Observed (all): 63
BGP Peers Observed (v4): 62
BGP Peers Observed (v6): 46

IPs Originated (v4): 0
AS Paths Observed (v4): 303
AS Paths Observed (v6): 175

Average AS Path Length (all): 3.071
Average AS Path Length (v4): 3.079
Average AS Path Length (v6): 3.057

AS31230 IPv4 Peers

ASN	Name
AS28725	CETIN a.s.
AS31117	ENERGOTEL a.s.
AS15935	ha-vel internet s.r.o.
AS25248	RADIOKOMUNIKACE a.s.
AS5405	Inter.link GmbH
AS29405	VNET a.s.
AS8778	Slovanet a.s.
AS50629	LWLcom GmbH
AS48326	DataNetworks s.r.o.
AS28952	O2 Business Services, a.s

AS31230 IPv6 Peers

ASN	Name
AS9002	RETN Limited
AS28725	CETIN a.s.
AS15935	ha-vel internet s.r.o.
AS29405	VNET a.s.
AS25248	RADIOKOMUNIKACE a.s.
AS38949	Trestel SK, a.s.
AS28952	O2 Business Services, a.s
AS5405	Inter.link GmbH
AS50629	LWLcom GmbH
AS47147	Anexia Cloud Solutions GmbH

AS31230 IPv4 Peer Count

AS31230 IPv6 Peer Count

AS31230 IPv4 Prefixes Announced

AS31230 IPv6 Prefixes Announced

Bogon Prefixes
Prefix	Type	Status

Rank	Description	IPv6	Peer
1	CETIN a.s.	X	AS28725
2	ENERGOTEL a.s.	X	AS31117
3	ha-vel internet s.r.o.	X	AS15935
4	RADIOKOMUNIKACE a.s.	X	AS25248
5	Inter.link GmbH	X	AS5405
6	VNET a.s.	X	AS29405
7	Slovanet a.s.	X	AS8778
8	LWLcom GmbH	X	AS50629
9	DataNetworks s.r.o.	X	AS48326
10	O2 Business Services, a.s	X	AS28952
11	Trestel SK, a.s.	X	AS38949
12	DSI DATA, a. s.	X	AS35328
13	E-MAX INTERNET & IT s.r.o.	X	AS49115
14	Anexia Cloud Solutions GmbH	X	AS47147
15	NTS workspace AG	X	AS15576
16	ACS spol. s r. o.	X	AS12905
17	bonet.systems, s. r. o.	X	AS44185
18	DELTA ONLINE spol. s r.o.	X	AS34820
19	LightStorm Services s.r.o.		AS42005
20	AIRNET s.r.o.	X	AS201603
21	WebSupport s.r.o.	X	AS51013
22	Kantonsschule Zug	X	AS34288
23	Stadtwerke Feldkirch	X	AS48362
24	Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET	X	AS2607
25	David Kondicz trading as KONFER networks		AS50953
26	LLC "OTT UKRAINE"		AS204384
27	Xenox IT & Kommunikations GmbH	X	AS215628
28	MakeNewMedia Communications GmbH	X	AS44765
29	ISPER, s.r.o.		AS43248
30	OSTV s.r.o.	X	AS209531
31	Atlantis Telekomunikasyon Bilisim Hizmetleri San. ve Tic. Ltd. Sti.		AS204457
32	CETIN Ltd. Belgrade		AS15958
33	Serbian Open Exchange DOO	X	AS13004
34	KOMNET, s.r.o.		AS56926
35	Kabel-TV Lampert GmbH & Co KG	X	AS59890
36	Nessus GmbH	X	AS47692
37	Telemach Slovenija d.o.o.		AS3212
38	Rainside s.r.o.	X	AS12508
39	Detronics s.r.o.		AS56656
40	MAXNETWORK s.r.o.		AS205168
41	Proximus Luxembourg S.A.		AS56665
42	DIGI SLOVAKIA, s.r.o.		AS49044
43	LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation	X	AS35369
44	PEGO Slovakia, s.r.o.		AS43653
45	Fonira Telekom GmbH	X	AS51184
46	The Slovak Internet eXchange Services	X	AS1922
47	Exatel S.A.		AS20804
48	euNetworks GmbH		AS13237
49	IP-Net s.r.o.	X	AS56349
50	ANTIK Telecom s.r.o	X	AS42841
51	ZSR - ZT Bratislava	X	AS25496
52	SATRO s.r.o.	X	AS31127
53	Kinet s.r.o.		AS57760
54	NETPLANET GmbH		AS24953
55	GOLEM TECH s.r.o.	X	AS30929
56	FunkFeuer Wien - Verein zur Foerderung freier Netze	X	AS35492
57	Innsbrucker Kommunalbetriebe AG	X	AS31510
58	G-Core Labs S.A.	X	AS199524
59	SateliX s.r.o.	X	AS60533
60	Automation & Business, s.r.o.	X	AS208882
61	Alanata a. s.	X	AS8620
62	Hetzner Online GmbH	X	AS24940

Rank	Description	IPv4	Peer
1	RETN Limited		AS9002
2	CETIN a.s.	X	AS28725
3	ha-vel internet s.r.o.	X	AS15935
4	VNET a.s.	X	AS29405
5	RADIOKOMUNIKACE a.s.	X	AS25248
6	Trestel SK, a.s.	X	AS38949
7	O2 Business Services, a.s	X	AS28952
8	Inter.link GmbH	X	AS5405
9	LWLcom GmbH	X	AS50629
10	Anexia Cloud Solutions GmbH	X	AS47147
11	DELTA ONLINE spol. s r.o.	X	AS34820
12	Slovanet a.s.	X	AS8778
13	DSI DATA, a. s.	X	AS35328
14	WebSupport s.r.o.	X	AS51013
15	Stadtwerke Feldkirch	X	AS48362
16	DataNetworks s.r.o.	X	AS48326
17	NTS workspace AG	X	AS15576
18	bonet.systems, s. r. o.	X	AS44185
19	Kantonsschule Zug	X	AS34288
20	MakeNewMedia Communications GmbH	X	AS44765
21	Kabel-TV Lampert GmbH & Co KG	X	AS59890
22	SateliX s.r.o.	X	AS60533
23	Nessus GmbH	X	AS47692
24	GOLEM TECH s.r.o.	X	AS30929
25	ZSR - ZT Bratislava	X	AS25496
26	Rainside s.r.o.	X	AS12508
27	Innsbrucker Kommunalbetriebe AG	X	AS31510
28	Serbian Open Exchange DOO	X	AS13004
29	The Slovak Internet eXchange Services	X	AS1922
30	ENERGOTEL a.s.	X	AS31117
31	ANTIK Telecom s.r.o	X	AS42841
32	E-MAX INTERNET & IT s.r.o.	X	AS49115
33	Automation & Business, s.r.o.	X	AS208882
34	Hetzner Online GmbH	X	AS24940
35	ACS spol. s r. o.	X	AS12905
36	G-Core Labs S.A.	X	AS199524
37	FunkFeuer Wien - Verein zur Foerderung freier Netze	X	AS35492
38	Fonira Telekom GmbH	X	AS51184
39	AIRNET s.r.o.	X	AS201603
40	IP-Net s.r.o.	X	AS56349
41	Xenox IT & Kommunikations GmbH	X	AS215628
42	LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation	X	AS35369
43	Alanata a. s.	X	AS8620
44	OSTV s.r.o.	X	AS209531
45	Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET	X	AS2607
46	SATRO s.r.o.	X	AS31127

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RIPE

aut-num: AS31230 as-name: SIX-ROUTE-SERVERS org: ORG-STU1-RIPE import: from AS-ANY accept ANY export: to AS-ANY announce AS-SIXSK-SETS mp-import: afi ipv6.unicast from AS-ANY accept ANY mp-export: afi ipv6.unicast to AS-ANY announce AS-SIXSK-SETS-V6 remarks: SIX Route Servers filter announcements from members against IRR. admin-c: DUMY-RIPE tech-c: DUMY-RIPE status: ASSIGNED mnt-by: RIPE-NCC-END-MNT mnt-by: SWDB-SANET mnt-by: AS2607-MNT created: 2015-05-19T13:53:22Z last-modified: 2025-10-16T07:35:28Z source: RIPE sponsoring-org: ORG-SAN1-RIPE remarks: Route server operation could be modified with following large BGP communities: remarks: remarks: 31230:0:peer-as - do not announce prefix to peer-as remarks: 31230:1:peer-as - announce prefix to peer-as remarks: 31230:100:peer-as - do not prepend when announcing to peer-as remarks: 31230:101:peer-as - apply 1 prepend when announcing to peer-as remarks: 31230:102:peer-as - apply 2 prepends when announcing to peer-as remarks: 31230:103:peer-as - apply 3 prepends when announcing to peer-as remarks: remarks: When you set peer-as to 0, action will be performed for all SIX peers. This could be overriden remarks: by setting additional BGP community for specific peer-as. remarks: remarks: If your router doesn't support large BGP communities, for 16-bit AS you can also use standard remarks: community 0:peer-as which works the same way as community 31230:0:peer-as. remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: ****************************

Exchange	CC	City	IPv4	IPv6
SIX.SK	SK	Bratislava	192.108.148.2 192.108.148.1	2001:7f8:2f::2 2001:7f8:2f::1
VIX	AT	Vienna	193.203.0.67	2001:7f8:30:0:2:1:3:1230

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