asn.dev

Autonomous system

AS56377 MGSK-AS

Unclassified RIPE

IPv4 addresses 16.64K 6 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

Russian Federation · AI-generated

isp residential business voip

MGSK-AS is operated by JSC "ER-Telecom Holding".

What it's used for

  • The address space carries residential and business subscriber traffic, evidenced by reverse DNS entries such as dynamic.mgn.ertelecom.ru, static-business.mgn.ertelecom.ru, and pppoe.mgn.ertelecom.ru.
  • The AS announces 16,640 IPv4 addresses across 6 prefixes and 1 IPv6 prefix, with only 1 observed neighbour, indicating a local access network rather than a transit provider.
  • Traffic consists of subscriber eyeballs and VoIP services, as indicated by the netname ERTH-MGSK-VOIP-1-NET and the mix of dynamic and static business IP assignments.

Notable

  • Registrants consistently identify as JSC "ER-Telecom Holding" or its Magnitogorsk Branch, aligning with the AS holder.
  • The inventory includes prefixes registered to both the holding company and specific regional branches, such as the Magnitogorsk Branch and an Irkutsk-based dynamic range.
  • The address inventory is subdivided into /20, /21, and /24 blocks, reflecting a structured allocation for different service types and regions.

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"1,126

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 6 prefixes · 16.64K addresses IPv6 1 prefixes

CountryNamePrefixes
RURussian Federation7

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS56377
Registry name
MGSK-AS
Registrant
JSC "ER-Telecom Holding"
Abuse contact
abuse@domru.ru
Registered
2011-02-14
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
15% valid · 3 valid, 17 with no ROA
ROAs
1 authorising AS56377
ASPA
no ASPA record
IRR
100% registered · 20 of 20 announcements
Route objects
47 naming AS56377

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: 442 networks and 1,771 prefixes, as published 2026-10-15. 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