Autonomous system profile

Review registration details, announced prefixes, network relationships and historical snapshots.

AS203208

Announcement observedRIPE NCC

Czech Telecommunication Office · CTU_AS4_2

This profile is assembled from CHA.LA's normalized registration, routing and observation snapshots.

Last active10/10/2026, 12:36:56Snapshot expired

View network topology RDAP registration

ASN: AS203208
Registration country: Czechia
Name: Czech Telecommunication Office
Abbreviation: CTU_AS4_2
Registration date: 3/8/2016, 14:32:58
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
185.68.212.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/26/2026, 08:00:00	10/10/2026, 08:00:00	✓	×	Historical record
185.68.214.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/26/2026, 08:00:00	10/10/2026, 08:00:00	✓	×	Historical record

BGP prefixes have no geographic country; the column is marked not applicable.

Registration and sources

Organization: Czech Telecommunication Office
RIR: RIPE NCC
Registration country: Czechia
Registration date: 3/8/2016, 14:32:58
Abuse contact: schmieds@ctu.cz

Snapshot trend

10/10/2026, 12:36:562 v43 v61 Upstream · 0 Uncertain

ASN route snapshotThis page reads collected ASN, prefix, relationship and history data. External interfaces are used for initial collection and scheduled refreshes.Source keys: cha-la-external-routing · iana-rdap-asn-bootstrap · rir-rdap-asn