asn.dev

Autonomous system

AS50436 TC-CIN

Unclassified RIPE

IPv4 addresses 91.90K 42 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Tele Columbus AG

Germany · AI-generated

cable residential fiber isp

The AS handle TC-CIN is held by Tele Columbus AG.

What it's used for

  • The address space carries residential broadband traffic, evidenced by reverse DNS entries like 37.120.32.0.dyn.pyur.net and netnames such as PRIMACOM-HEADENDS-2015-01 and DE-TELECOLUMBUS-20120213.
  • The network announces 91,904 IPv4 addresses across 42 prefixes and 2 IPv6 prefixes, with only 1 observed neighbour, indicating a large access network rather than a transit provider.
  • Traffic consists of subscriber eyeballs for high-speed internet, TV entertainment, and fixed-line telephony, delivered over hybrid fiber optic networks under the PŸUR brand.

Notable

  • Registrants consistently identify as Tele Columbus AG or its IP contact, aligning with the announcer.
  • Tele Columbus AG operates under the consumer brand PŸUR and serves over three million households in Germany.
  • The inventory includes legacy netnames referencing Primacom, reflecting historical acquisitions within the German cable market.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS16097HL komm Telekommunikations GmbH3,094

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, 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 42 prefixes · 91.90K addresses IPv6 2 prefixes

CountryNamePrefixes
DEGermany44

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS50436
Registry name
TC-CIN
Registrant
Tele Columbus AG
Abuse contact
abuse@mip-platform.net
Registered
2022-06-24
Last changed
2025-04-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 52 valid, 0 with no ROA
ROAs
30 authorising AS50436
ASPA
no ASPA record
IRR
100% registered · 52 of 52 announcements
Route objects
67 naming AS50436

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 1,783 prefixes, as published 2026-10-20. 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