asn.dev

Autonomous system

AS57378 ROSTOV-AS

Unclassified RIPE

IPv4 addresses 64.51K 41 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

residential isp russia broadband

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

What it's used for

  • The address space carries dynamic residential broadband, with netnames such as ERTH-ROSTOV-DYNAMIC-PPPOE-176-NET and ERTH-ROSTOV-PPPOE-20-NET, and reverse DNS entries like 5x165x244x0.dynamic.rostov.ertelecom.ru.
  • The AS announces 64,512 IPv4 addresses across 41 prefixes and 1 IPv6 prefix, while maintaining only 1 observed neighbour, a ratio characteristic of an access network rather than a transit provider.
  • Traffic from this AS consists of subscriber eyeballs for fixed-line broadband services in regions including Rostov-na-Donu, Penza, Chelny, and Novosibirsk.

Notable

  • Registrants consistently identify JSC "ER-Telecom Holding" and its Rostov-na-Donu branch, aligning with the AS holder.
  • The inventory is finely subdivided into /20, /21, and /22 blocks, reflecting site-by-site segmentation for different regional branches and access technologies.

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"5,291

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 41 prefixes · 64.51K addresses IPv6 1 prefixes

CountryNamePrefixes
RURussian Federation42

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS57378
Registry name
ROSTOV-AS
Registrant
JSC "ER-Telecom Holding"
Abuse contact
abuse@domru.ru
Registered
2011-10-12
Last changed
2020-09-21
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
8% valid · 7 valid, 86 with no ROA
ROAs
1 authorising AS57378
ASPA
no ASPA record
IRR
100% registered · 93 of 93 announcements
Route objects
139 naming AS57378

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 1,772 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