Autonomous system profile

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

AS5610

Announcement observedRIPE NCC

O2-CZECH-REPUBLIC O2 Czech Republic, a.s. · O2-CZECH-REPUBLIC

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

Last active10/17/2026, 06:02:04Snapshot expired

View network topology RDAP registration

ASN: AS5610
Registration country: Czechia
Name: O2-CZECH-REPUBLIC O2 Czech Republic, a.s.
Abbreviation: O2-CZECH-REPUBLIC
Registration date: 7/22/2002, 13:51:41
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
109.80.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
109.81.112.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
109.81.160.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
160.218.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
161.195.144.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
185.143.112.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
185.61.228.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
193.17.13.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
193.84.12.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
193.84.12.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
193.84.14.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
194.165.47.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
194.228.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
194.228.0.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
194.228.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
194.228.72.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
194.50.248.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
195.5.186.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
217.117.208.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
217.194.160.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
37.188.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
5.23.39.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
80.188.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
80.188.0.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
80.188.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
80.188.222.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
80.188.40.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
81.90.160.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
81.90.168.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
81.90.168.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
81.90.170.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
81.90.173.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
83.208.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
83.208.0.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
83.208.128.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
83.208.220.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
83.208.64.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
83.69.32.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.160.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.193.0.0/18BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.70.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.70.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.70.0.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.70.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.71.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
85.71.224.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
88.100.0.0/14BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
88.100.0.0/15BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
88.102.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid
88.83.160.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 08:00:00	10/17/2026, 00:00:00	✓	×	Currently valid

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

Registration and sources

Organization: O2-CZECH-REPUBLIC O2 Czech Republic, a.s.
RIR: RIPE NCC
Registration country: Czechia
Registration date: 7/22/2002, 13:51:41
Abuse contact: abuse@o2.cz

Snapshot trend

10/17/2026, 06:02:0467 v45 v621 Upstream · 9 Uncertain

10/7/2026, 05:52:1267 v45 v624 Upstream · 9 Uncertain

9/29/2026, 13:27:0567 v45 v623 Upstream · 9 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 · rir-rdap-asn · iana-rdap-asn-bootstrap