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BGP history

Review announcements, withdrawals and observed origin changes for a Prefix over time, with the underlying events.

120.133.20.0/23

Observations availableIPv4

Latest originsAS4835

Events come from RIPE RIS route observations stored by CHA.LA; results represent collector visibility, not the complete global routing table.
Last observed10/14/2026, 17:50:10Open Prefix profile →
Route events47 days
Announcement4Route reachability advertised
Withdrawal0Route reachability withdrawn
Origin change0Observed origin-set changes

Announcement and withdrawal timeline

Oct 14, 13 – Oct 14, 19Announcements 1Withdrawals 0AS4835
AnnouncementWithdrawalOrigin changeAll times use UTC
Visible peers
4
Collectors
1
Latest origins
AS4835
Aggregate points
2

Observed origin-set changes

0 changes
No origin-set changes were observed in the last 7 days.

Announcement and withdrawal detail

TimeEventOrigin ASNAS pathPeerCollector
10/14/2026, 17:50:10AnnouncementAS4835204092 198978 174 4134 483589.234.186.6rrc00
10/14/2026, 09:35:11AnnouncementAS48354608 1221 4637 1299 4134 4835203.119.104.1rrc00
10/13/2026, 07:05:18AnnouncementAS483557821 12586 3257 4134 4835193.160.39.1rrc00
10/10/2026, 10:50:02AnnouncementAS483517639 6939 4134 4835202.69.160.152rrc00
CHA.LA BGP historyThis page uses the RIPE RIS event stream and hourly aggregates in local ClickHouse storage; withdrawal-only windows are not misclassified as origin changes.Source: CHA.LA local ClickHouse · Maximum query window: 30 days