asn.dev

Autonomous system

AS52176 TTC-

Unclassified AFRINIC

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CZ
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

TTC Telekomunikace

Czechia · AI-generated

telecom infrastructure business

TTC-CZ is operated by TTC Telekomunikace s.r.o., a Czech supplier of communication infrastructure solutions within the TTC Holding group.

What it's used for

  • The address space carries infrastructure and teleport services, evidenced by netnames TTC-INFRASTRUCTURE and TTC-TELEPORT and reverse DNS entries like ttcas21net.ttc.cz.
  • The AS announces 1536 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a focused internal or service-specific network rather than a large-scale transit or access provider.
  • Traffic from this AS consists of corporate and infrastructure endpoints for TTC Holding's ICT subsidiaries, supporting their communication infrastructure and data centre operations.

Notable

  • Registrants for both announced prefixes are listed as Abuse-C Role, which aligns with the announcer TTC Telekomunikace s.r.o.
  • The address inventory is compact, consisting of two contiguous IPv4 blocks (46.226.18.0/23 and 46.226.20.0/22) and a single /32 IPv6 prefix, reflecting a tightly managed corporate estate.

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

2 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS39392SH.cz s.r.o.94
AS29208Quantcom, a.s.56

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

Shape and geography

IPv4 2 prefixes · 1.54K addresses IPv6 1 prefixes

CountryNamePrefixes
CZCzechia3

Registry

Allocation record

AFRINIC · via Atlas (registry + RDAP)
Registry
AFRINIC
Handle
AS52176
Registry name
TTC-CZ
Registrant
MNT-TTC
Abuse contact
majer@ttc.cz
Registered
2011-01-20
Last changed
2022-09-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS52176
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
3 naming AS52176

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

Cross-check