Autonomous system
AS47236 CITYLINK-AS
Unclassified RIPE Cable/DSL/ISP
Summary
CityLink Ltd
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.proand netnames likeCLandRU-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
unknownwith the netnameRIPE-NCC-MANAGED-ADDRESS-BLOCK, while specific blocks like178.19.240.0/21and178.19.252.0/23are explicitly registered toCITYLINK NOCandCityLink Ltd. - One prefix,
176.97.108.0/23, is registered toM Svyaz LLCwith the netnameRU-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
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.
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
IPv4 19 prefixes · 19.71K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| RU | Russian Federation | 19 |
Registry
Allocation record
- 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
Declared
PeeringDB profile
- Name
- CityLink ISP
- Also known as
- CityLink Ltd ISP
- Network type
- Cable/DSL/ISP
- Scope
- Europe
- Traffic ratio
- Not Disclosed
- Peering policy
- Selective
- IRR as-set
AS-SET-CL- Present at
- 1 exchanges
- Website
- https://citylink.pro/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- 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 1,771 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