asn.dev

Autonomous system

AS56981 TOMSK-AS

Unclassified RIPE

IPv4 addresses 179K 64 prefixes
IPv6 prefixes 1 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 (Tomsk)

Russian Federation · AI-generated

residential isp tomsk russia

TOMSK-AS is operated by JSC "ER-Telecom Holding", specifically its Tomsk branch.

What it's used for

  • The address space carries residential and business subscriber traffic, evidenced by reverse DNS entries such as static-business.tomsk.ertelecom.ru, static-user-109-124-31-255.tomtelnet.ru, and crt-c9006-vl1611.nts.su.
  • The AS announces 175,104 IPv4 addresses across 71 prefixes and 1 IPv6 prefix, while maintaining only 1 observed neighbour in RIS. This high address-to-neighbour ratio indicates an access/eyeball network rather than a transit provider.
  • Traffic from this AS consists of subscriber eyeballs and business endpoints within the Tomsk region, consistent with ER-Telecom's role as a regional telecommunications provider.

Notable

  • Registrants consistently identify the holder as JSC "ER-Telecom Holding" or its Tomsk branch, with netnames like RU-RAID-20101119 and ERTH-TOMSK-NET aligning with the announcer.
  • The address inventory is finely subdivided into numerous /20 and /21 blocks, reflecting site-by-site segmentation typical of a large regional ISP managing distinct customer pools.

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"6,730

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 64 prefixes · 179K addresses IPv6 1 prefixes

CountryNamePrefixes
RURussian Federation65

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS56981
Registry name
TOMSK-AS
Registrant
JSC "ER-Telecom Holding"
Abuse contact
abuse@domru.ru
Registered
2011-06-28
Last changed
2024-10-02
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
2% valid · 2 valid, 110 with no ROA
ROAs
1 authorising AS56981
ASPA
no ASPA record
IRR
98% registered · 110 of 112 announcements 2 other origin
Route objects
116 naming AS56981

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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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