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BGP history

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

155.137.96.0/21

Observations availableIPv4

Latest originsAS55821

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, 04:40:57Open Prefix profile →
Route events197 days
Announcement18Route reachability advertised
Withdrawal1Route reachability withdrawn
Origin change0Observed origin-set changes

Announcement and withdrawal timeline

Oct 14, 00 – Oct 14, 06Announcements 12Withdrawals 0AS55821
AnnouncementWithdrawalOrigin changeAll times use UTC
Visible peers
10
Collectors
1
Latest origins
AS55821
Aggregate points
4

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, 04:40:57AnnouncementAS5582158057 34549 137409 63927 55821194.50.92.251rrc00
10/14/2026, 04:40:57AnnouncementAS5582149432 48362 137409 63927 55821195.128.231.254rrc00
10/14/2026, 04:40:57AnnouncementAS55821206499 34549 137409 63927 5582145.14.68.69rrc00
10/14/2026, 04:40:57AnnouncementAS5582134549 137409 63927 5582180.77.16.114rrc00
10/14/2026, 04:40:55AnnouncementAS5582158057 1836 137409 63927 55821193.33.94.251rrc00
10/14/2026, 04:40:54AnnouncementAS5582158057 34549 137409 63927 55821194.50.92.251rrc00
10/14/2026, 04:40:54AnnouncementAS5582149432 48362 137409 63927 55821195.128.231.254rrc00
10/14/2026, 04:40:54AnnouncementAS55821206499 34549 137409 63927 5582145.14.68.69rrc00
10/14/2026, 04:40:54AnnouncementAS5582134549 137409 63927 5582180.77.16.114rrc00
10/14/2026, 02:15:49AnnouncementAS558211403 577 6461 137409 63927 55821198.58.198.252rrc00
10/14/2026, 02:15:34AnnouncementAS558211403 577 4637 55821198.58.198.252rrc00
10/14/2026, 02:15:23AnnouncementAS558211403 577 4637 55821198.58.198.252rrc00
10/13/2026, 08:05:34AnnouncementAS5582148185 137409 63927 55821195.90.96.2rrc00
10/13/2026, 07:05:46AnnouncementAS5582157821 12586 3257 63927 55821193.160.39.1rrc00
10/12/2026, 12:45:10AnnouncementAS5582157821 12586 3257 63927 55821193.160.39.1rrc00
10/11/2026, 10:35:03AnnouncementAS55821204092 137409 63927 5582189.234.186.6rrc00
10/11/2026, 10:30:18AnnouncementAS55821204092 137409 63927 5582189.234.186.6rrc00
10/10/2026, 23:20:04Withdrawal——195.128.231.254rrc00
10/9/2026, 13:20:33AnnouncementAS5582117639 55821202.69.160.152rrc00
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