asn.dev

Autonomous system

AS51645 IRKUTSK-AS

Unclassified RIPE

IPv4 addresses 73.22K 49 prefixes
IPv6 prefixes 10 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

ER-Telecom Holding

Russian Federation · AI-generated

residential isp ertelecom irkutsk

The AS handle is IRKUTSK-AS, held by JSC "ER-Telecom Holding".

What it's used for

  • The address space carries residential broadband traffic, evidenced by netnames such as ERTH-IRKUTSK-PPPOE-13-NET and ERTH-IRKUTSK-PPPOE-NET, and reverse DNS entries like 5x167x20x0.dynamic.irkutsk.ertelecom.ru and 84-244-36-0.pppoe.irknet.ru.
  • The AS announces 73,216 IPv4 addresses across 49 prefixes and 10 IPv6 prefixes, while maintaining only 2 observed neighbours, a ratio characteristic of an access network serving end-users rather than a transit provider.
  • Traffic from this AS consists of subscriber eyeballs for the Irkutsk branch of ER-Telecom, a major Russian telecommunications operator providing fixed-line, mobile, and internet services.

Notable

  • All registrants in the sample align with the announcer, listing JSC "ER-Telecom Holding" or its Irkutsk branch, with contact roles identified as ER-Telecom ISP Contact Role.
  • The address inventory is finely subdivided into numerous /20, /21, and /22 blocks, reflecting site-by-site segmentation for a large regional ISP estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS9049JSC "ER-Telecom Holding"6,672

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 49 prefixes · 73.22K addresses IPv6 10 prefixes

CountryNamePrefixes
RURussian Federation59

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51645
Registry name
IRKUTSK-AS
Registrant
JSC "ER-Telecom Holding"
Abuse contact
abuse@domru.ru
Registered
2011-08-10
Last changed
2019-12-11
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
7% valid · 8 valid, 108 with no ROA
ROAs
1 authorising AS51645
ASPA
no ASPA record
IRR
99.1% registered · 115 of 116 announcements 1 other origin
Route objects
146 naming AS51645

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check