Home ASN LookupAS25511

AS25511 ASN-NET21 JSC "RCS"

🇷🇺

Org handle: ORG-JA452-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

3total

3 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)5,120

Announced (BGP)6,144

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇷🇺 RU

RIR

RIPE NCC

Status

allocated

Allocated

2002-12-17

Announced Prefixes

(BGP)3

Prefix	RPKI	IRR	Last Seen
91.103.196.0/22	No ROA	RIPE	2026-10-10
185.108.0.0/22	No ROA	RIPE	2026-10-10
217.12.240.0/20	No ROA	RIPE	2026-10-10

Allocated Prefixes

(RIR)2

Prefix	Country	RIR	Status
185.108.0.0/22	🇷🇺 RU	RIPENCC	allocated
217.12.240.0/20	🇷🇺 RU	RIPENCC	allocated

All 3 announced prefixes of AS25511 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS25511 hands its own prefixes to: transit providers, or peers at an exchange.

AS197453BIZTEL Biz Telecom3

Transfer History

Registry transfers of AS25511 between organisations.

AS25511Transfer · 2023-01-19
JSC "Ruscentrosvyaz"
RIPE NCC
→
JSC "RCS"
RIPE NCC

Date	Resource	From	To	Type
2023-01-19	AS25511	JSC "Ruscentrosvyaz" RIPE NCC	JSC "RCS" RIPE NCC	Transfer

ASPA

No ASPA

Abuse Contact

External Links

RIPE Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS25511 should publish an ASPA object
IPv4 transfers in the RIPE NCC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/25511

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

curl -s "https://api.ipctl.io/v1/asn/25511" | jq