asn.dev

Autonomous system

AS47236 CITYLINK-AS

Unclassified RIPE

IPv4 addresses 19.71K 19 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 14 2 downstream
Flagged prefixes 0 none

Summary

CityLink Ltd

Russian Federation · AI-generated

isp residential cable russia

The AS handle CITYLINK-AS is held by CityLink Ltd.

What it's used for

  • The address space carries residential and business internet access, evidenced by reverse DNS entries such as ip-94-140-247-254.citylink.pro and netnames like CL and RU-CITYLINK-20100525.
  • The network announces 19 IPv4 prefixes covering 19712 addresses and maintains 39 observed neighbours, a ratio consistent with an access provider distributing traffic to end-users rather than a transit hub.
  • Traffic from this AS consists of subscriber eyeballs for cable and DSL services in the Petrozavodsk region, as indicated by the operator's registration address and PeeringDB classification as a Cable/DSL/ISP.

Notable

  • Registrants for the majority of prefixes are listed as unknown with the netname RIPE-NCC-MANAGED-ADDRESS-BLOCK, while specific blocks like 178.19.240.0/21 and 178.19.252.0/23 are explicitly registered to CITYLINK NOC and CityLink Ltd.
  • One prefix, 176.97.108.0/23, is registered to M Svyaz LLC with the netname RU-MSVYAZ-20110923, indicating a distinct ownership or leasing arrangement within the announced space.
  • The inventory is composed of 19 IPv4 prefixes with no IPv6 announcements, reflecting a legacy IPv4-only deployment.

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

14 upstream, 2 downstream and 16 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS31133PJSC MegaFon1,649
AS20485Joint Stock Company TransTeleCom1,053
AS3216PJSC "Vimpelcom"437
AS31500Global Network Management Inc59
AS8359MTS PJSC55
AS6939Hurricane Electric LLC52
AS50509Transroute Telecom LTD36
AS50673Serverius Holding B.V.18

All 14 upstreams →

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 19 prefixes · 19.71K addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation19

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS47236
Registry name
CITYLINK-AS
Registrant
CTLNK-MNT
Abuse contact
abuse@citylink.pro
Registered
2008-05-22
Last changed
2026-02-24
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 58 with no ROA
ROAs
0 authorising AS47236
ASPA
no ASPA record
IRR
91% registered · 53 of 58 announcements
Route objects
71 naming AS47236

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 1,781 prefixes, as published 2026-10-16. 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