asn.dev

Autonomous system

AS30975 TKK Kotarbinskiego 3, 75-352 Koszalin

Unclassified RIPE

IPv4 addresses 25.60K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly PL
Exchanges 2 recorded by PCH
Upstreams 3 3 downstream
Flagged prefixes 0 none

Summary

TKK Telewizja Kablowa Koszalin

Poland · AI-generated

cable residential isp poland

TKK is operated by TKK Telewizja Kablowa Koszalin sp. z o. o.

What it's used for

  • The address space carries residential cable modem traffic, evidenced by reverse DNS entries such as 83-145-175-254.cable-modem.tkk.net.pl and 77-92-47-255.cable-modem.tkk.net.pl.
  • The AS announces 25,600 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 16 observed neighbours; this ratio of address volume to peering partners indicates an access network serving local subscribers.

Notable

  • All registrants for the announced prefixes (PL-TKK-20040130, PL-TKK-20091113, and TKK) are listed as Telewizja Kablowa Koszalin sp. z o. o., fully consistent with the AS holder.
  • The inventory consists of three distinct IPv4 blocks and one IPv6 /32, reflecting a regional cable operator's estate segmented by acquisition or deployment phase.

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

Recorded at 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
Equinix Internet Exchange WarsawWarsaw, Poland195.182.218.52
Thinx IXWarsaw, Poland212.91.0.154

Transit providers

3 upstream, 3 downstream and 11 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS20804Exatel S.A.136
AS12741Netia SA61
AS6939Hurricane Electric LLC21

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 · 25.60K addresses IPv6 1 prefixes

CountryNamePrefixes
PLPoland4

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS30975
Registry name
TKK
Registrant
Telewizja Kablowa Koszalin sp. z o. o.
Abuse contact
abuse@tkk.net.pl
Registered
2004-01-30
Last changed
2023-01-21
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Telewizja Kablowa Koszalin
Scope
Not Disclosed
Traffic ratio
Not Disclosed

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, 5 with no ROA
ROAs
0 authorising AS30975
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
4 naming AS30975

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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