Autonomous system profile

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

AS2852

Announcement observedRIPE NCC

ORG-CA9-RIPE · CESNET2

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

Last active10/29/2026, 14:31:03Snapshot expired

View network topology RDAP registration

ASN: AS2852
Registration country: Czechia
Name: ORG-CA9-RIPE
Abbreviation: CESNET2
Registration date: 6/22/2002, 23:41:57
Status: Announcement observed
RIR: RIPE NCC

Network relationships and announced prefixes

ASN / prefix	Description / organization	Geographic scope	First seen	Last active	IPv4	IPv6	Status
146.102.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
147.228.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
147.230.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
147.231.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
147.251.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
147.32.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
147.33.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
158.194.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
158.196.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
160.216.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
160.217.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
185.8.160.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.104.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.116.0/23BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.160.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.192.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.192.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.208.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.32.0/20BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.53.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.55.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.56.0/21BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
193.84.80.0/22BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
195.113.0.0/16BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
195.113.241.0/24BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	10/14/2026, 00:00:00	10/14/2026, 00:00:00	✓	×	Historical record
195.178.64.0/19BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid
78.128.128.0/17BGP · IPv4	Announced prefixBGP route observation	Not applicable · BGP prefix	9/15/2026, 00:00:00	10/29/2026, 08:00:00	✓	×	Currently valid

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

Registration and sources

Organization: ORG-CA9-RIPE
RIR: RIPE NCC
Registration country: Czechia
Registration date: 6/22/2002, 23:41:57
Abuse contact: abuse@cesnet.cz

Snapshot trend

10/29/2026, 14:31:0326 v41 v674 Upstream · 73 Uncertain

10/25/2026, 05:58:2127 v41 v673 Upstream · 61 Uncertain

10/17/2026, 05:28:1327 v41 v676 Upstream · 72 Uncertain

10/7/2026, 05:51:5526 v41 v673 Upstream · 73 Uncertain

10/6/2026, 04:15:4726 v41 v673 Upstream · 74 Uncertain

9/29/2026, 09:45:1326 v41 v671 Upstream · 75 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