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BGP history

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

122.100.128.0/17

Observations availableIPv4

Latest originsAS4609

Events come from RIPE RIS route observations stored by CHA.LA; results represent collector visibility, not the complete global routing table.
Last observed10/13/2026, 07:05:21Open Prefix profile →
Route events77 days
Announcement7Route reachability advertised
Withdrawal0Route reachability withdrawn
Origin change0Observed origin-set changes

Announcement and withdrawal timeline

Oct 8, 23 – Oct 9, 05Announcements 1Withdrawals 0AS4609
AnnouncementWithdrawalOrigin changeAll times use UTC
Visible peers
4
Collectors
1
Latest origins
AS4609
Aggregate points
1

Observed origin-set changes

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

Announcement and withdrawal detail

TimeEventOrigin ASNAS pathPeerCollector
10/13/2026, 07:05:21AnnouncementAS460957821 12586 3257 6453 7617 4609193.160.39.1rrc00
10/12/2026, 11:25:06AnnouncementAS46094608 7575 3491 7617 4609203.119.104.1rrc00
10/12/2026, 06:15:11AnnouncementAS46094608 7575 3491 7617 4609203.119.104.1rrc00
10/10/2026, 10:10:19AnnouncementAS460917639 7617 4609202.69.160.152rrc00
10/9/2026, 13:20:33AnnouncementAS460917639 7617 4609202.69.160.152rrc00
10/9/2026, 09:00:01AnnouncementAS46094608 7575 3491 7617 4609203.119.104.1rrc00
10/9/2026, 02:15:10AnnouncementAS460929504 39392 1299 6453 7617 4609185.193.84.191rrc00
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