151.237.52.23

NetRange:       151.0.0.0 - 151.255.255.255
CIDR:           151.0.0.0/8
NetName:        RIPE-ERX-151
NetHandle:      NET-151-0-0-0-0
Parent:          ()
NetType:        Early Registrations, Maintained by RIPE NCC
OriginAS:       
Organization:   RIPE Network Coordination Centre (RIPE)
RegDate:        1993-05-01
Updated:        2009-05-18
Comment:        These addresses have been further assigned to users in
Comment:        the RIPE NCC region.  Contact information can be found in
Comment:        the RIPE database at http://www.ripe.net/whois
Ref:            https://rdap.arin.net/registry/ip/151.0.0.0

ResourceLink:  https://apps.db.ripe.net/search/query.html
ResourceLink:  whois.ripe.net

OrgName:        RIPE Network Coordination Centre
OrgId:          RIPE
Address:        P.O. Box 10096
City:           Amsterdam
StateProv:      
PostalCode:     1001EB
Country:        NL
RegDate:        
Updated:        2013-07-29
Ref:            https://rdap.arin.net/registry/entity/RIPE

ReferralServer:  whois://whois.ripe.net
ResourceLink:  https://apps.db.ripe.net/search/query.html

OrgAbuseHandle: ABUSE3850-ARIN
OrgAbuseName:   Abuse Contact
OrgAbusePhone:  +31205354444 
OrgAbuseEmail:  abuse@ripe.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE3850-ARIN

OrgTechHandle: RNO29-ARIN
OrgTechName:   RIPE NCC Operations
OrgTechPhone:  +31 20 535 4444 
OrgTechEmail:  hostmaster@ripe.net
OrgTechRef:    https://rdap.arin.net/registry/entity/RNO29-ARIN

Found a referral to whois.ripe.net.

inetnum:        151.237.48.0 - 151.237.55.255
netname:        BG-FIBERBG-20120816
country:        BG
org:            ORG-PONF1-RIPE
admin-c:        NTS62-RIPE
tech-c:         VK4736-RIPE
status:         ALLOCATED PA
mnt-by:         bg-fiberbg-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
created:        2022-11-08T14:05:12Z
last-modified:  2022-11-08T14:05:12Z
source:         RIPE

organisation:   ORG-PONF1-RIPE
org-name:       Passive Optical Networks FiberBG EOOD
country:        BG
org-type:       LIR
address:        ul. Zdravets 14
address:        1434
address:        Sofia
address:        BULGARIA
phone:          +359878 166206
admin-c:        NTS62-RIPE
tech-c:         VK4736-RIPE
abuse-c:        AR46021-RIPE
mnt-ref:        bg-fiberbg-1-mnt
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         bg-fiberbg-1-mnt
created:        2018-04-16T07:41:24Z
last-modified:  2020-12-16T12:44:41Z
source:         RIPE # Filtered

person:         Nayden Tsvetanov Stoyanov
address:        209, Simeonovsko shose Blvd
address:        1434
address:        Sofia
address:        BULGARIA
phone:          +359878 166206
nic-hdl:        NTS62-RIPE
mnt-by:         bg-fiberbg-1-mnt
created:        2018-04-16T07:41:23Z
last-modified:  2018-04-16T07:41:24Z
source:         RIPE

person:         Valentin Kujumdjiev
address:        209, Simeonovsko shose Blvd
address:        1434
address:        Sofia
address:        BULGARIA
phone:          +359878 166206
nic-hdl:        VK4736-RIPE
mnt-by:         bg-fiberbg-1-mnt
created:        2018-04-16T07:41:23Z
last-modified:  2018-04-16T07:41:24Z
source:         RIPE

route:          151.237.48.0/21
descr:          PROLAN Ltd.
origin:         AS48181
mnt-by:         IPACCT-MNT
created:        2012-08-30T21:52:39Z
last-modified:  2012-08-30T21:52:39Z
source:         RIPE