asn.dev

Autonomous system

AS51309 Interfax Joint Stock Company Interfax

Unclassified RIPE

IPv4 addresses 1.79K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Interfax

Russian Federation · AI-generated

news media corporate russia

INTERFAX is operated by Interfax Joint Stock Company Interfax.

What it's used for

  • The address space carries corporate infrastructure for the Russian news agency, as indicated by the netnames RU-INTERFAX-20100716 and INTERFAX-NET and registrants Interfax NOC; Joint Stock Company Interfax.
  • The AS announces 1792 IPv4 addresses across 3 prefixes with 5 observed neighbours, a ratio consistent with a small internal corporate estate rather than a transit or access network.
  • Traffic from this AS consists of office workers, newsroom staff, and web/API endpoints supporting Interfax's media operations.

Notable

  • Registrants across all announced prefixes consistently identify Interfax NOC and Joint Stock Company Interfax, aligning with the AS holder.
  • The address inventory is finely subdivided into three contiguous /22, /23, and /24 blocks within the 46.28.16.0/20 range, reflecting site-by-site segmentation typical of a single corporate entity.

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

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS57304JSC "RetnNet"237
AS197068HLL LLC120
AS199599Telecom-Birzha, LLC37
AS9002RETN Limited29

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-31, 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 3 prefixes · 1.79K addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51309
Registry name
Interfax
Registrant
INTERFAX-MNT
Abuse contact
noc@interfax.ru
Registered
2010-07-20
Last changed
2023-03-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 7 valid, 0 with no ROA
ROAs
8 authorising AS51309
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
9 naming AS51309

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: 447 networks and 1,843 prefixes, as published 2026-11-01. 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