asn.dev

Autonomous system

AS51011 P-T-K-AS

Unclassified RIPE Cable/DSL/ISP

IPv4 addresses 2.05K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly RU
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Comcor

Russian Federation · AI-generated

isp residential regional russia

The AS handle P-T-K-AS is held by JSC Comcor.

What it's used for

  • The space carries residential and business access traffic, evidenced by the netname RU-COMCOR and reverse DNS entries such as nat-255-rb4.p-t-k.net and host29-254.lease.p-t-k.net.
  • The network announces 2048 IPv4 addresses across 1 prefix with 1 observed neighbour, a ratio that indicates a regional access provider rather than a transit carrier.
  • Traffic from this AS consists of subscriber eyeballs and local business connections served by Comcor's cable and DSL infrastructure.

Notable

  • The registrant JSC Comcor matches the AS holder and the netname RU-COMCOR, confirming consistent ownership of the address space.
  • The address inventory is a single contiguous /21 block, typical for a regional ISP managing a specific geographic footprint.

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 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8732JSC Comcor61

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-29, 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 1 prefixes · 2.05K addresses IPv6 0 prefixes

CountryNamePrefixes
RURussian Federation1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS51011
Registry name
P-T-K-AS
Registrant
AS8732-MNT
Abuse contact
netadm@comcor.ru
Registered
2010-05-17
Last changed
2024-10-10
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Comcor
Also known as
ООО "П-Т-К"
Network type
Cable/DSL/ISP
Scope
Regional
Traffic ratio
Mostly Inbound
Peering policy
Selective
IRR as-set
RIPE::AS-P-T-K
Website
https://www.p-t-k.net

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

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
1 authorising AS51011
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS51011

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: 448 networks and 1,849 prefixes, as published 2026-10-29. 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