HomeASN LookupAS51904

AS51904 UTEX-AS Shchurov Mikhail Yurievich

🇷🇺

Org handle: ORG-SMY3-RIPE

RIPE NCCallocated
Announced Prefixes (BGP)
2total
2 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)2,048
Announced (BGP)2,048
IPv6 Addresses
Allocated (RIR)6.3×10²⁹
Announced (BGP)0
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
5
Country
🇷🇺 RU
RIR
RIPE NCC
Status
allocated
Allocated
2010-11-26

Announced Prefixes

(BGP)2
|
Prefix
RPKI
IRR
Last Seen
91.132.104.0/22
No ROA
RIPE
2026-10-10
193.41.76.0/22
No ROA
RIPE
2026-10-10

Allocated Prefixes

(RIR)3
Prefix
Country
RIR
Status
91.132.104.0/22🇷🇺 RURIPENCCallocated
193.41.76.0/22🇷🇺 RURIPENCCassigned
2a09:c480::/29🇷🇺 RURIPENCCallocated

All 2 announced prefixes of AS51904 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS51904 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS8641NAUKANET "Nauka Svyaz"2

Downstreams (1)

Networks whose own prefixes AS51904 passes on: usually its customers.

  • AS51538Tekcom Lavrentyev Aleksandr Arkadievich1

Other adjacent networks (2)

Adjacent to AS51904 in the transit part of AS paths: peers, providers or customers.

Transfer History

Registry transfers of AS51904 between organisations.

1
ASPA
No ASPA
Abuse Contact
External Links
RIPE WhoisRIPEstat

Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/51904

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/51904" | jq