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BGP history

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

109.176.40.0/21

Observations availableIPv4

Latest originsAS16276

Events come from RIPE RIS route observations stored by CHA.LA; results represent collector visibility, not the complete global routing table.
Last observed10/12/2026, 18:35:16Open Prefix profile →
Route events87 days
Announcement8Route reachability advertised
Withdrawal0Route reachability withdrawn
Origin change0Observed origin-set changes

Announcement and withdrawal timeline

Oct 11, 07 – Oct 11, 13Announcements 2Withdrawals 0AS16276
AnnouncementWithdrawalOrigin changeAll times use UTC
Visible peers
5
Collectors
1
Latest origins
AS16276
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
10/12/2026, 18:35:16AnnouncementAS1627637721 16276165.16.221.66rrc00
10/12/2026, 15:55:00AnnouncementAS162764608 7575 16276203.119.104.1rrc00
10/12/2026, 11:25:07AnnouncementAS162764608 7575 16276203.119.104.1rrc00
10/11/2026, 10:30:13AnnouncementAS16276204092 1627689.234.186.6rrc00
10/11/2026, 10:25:19AnnouncementAS16276204092 1627689.234.186.6rrc00
10/10/2026, 10:10:13AnnouncementAS1627617639 16276202.69.160.152rrc00
10/9/2026, 13:20:20AnnouncementAS1627617639 16276202.69.160.152rrc00
10/9/2026, 03:30:32AnnouncementAS1627655720 3257 174 1627645.116.179.212rrc00
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