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BGP history

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

172.56.36.0/23

Observations availableIPv4

Latest originsAS21928

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, 13:05:07Open Prefix profile →
Route events737 days
Announcement65Route reachability advertised
Withdrawal8Route reachability withdrawn
Origin change0Observed origin-set changes

Announcement and withdrawal timeline

Oct 10, 19 – Oct 11, 01Announcements 2Withdrawals 1AS21928
AnnouncementWithdrawalOrigin changeAll times use UTC
Visible peers
37
Collectors
1
Latest origins
AS21928
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
10/12/2026, 13:05:07AnnouncementAS2192824482 21928203.175.175.15rrc00
10/12/2026, 13:05:06AnnouncementAS2192844393 58057 6939 2192849.12.70.222rrc00
10/12/2026, 13:05:06AnnouncementAS2192861218 6939 21928143.246.179.232rrc00
10/12/2026, 13:05:06AnnouncementAS2192849134 53356 6939 2192823.129.32.61rrc00
10/12/2026, 13:05:01AnnouncementAS2192861218 6939 3356 21928143.246.179.232rrc00
10/12/2026, 13:05:01AnnouncementAS2192844393 394256 174 2192849.12.70.222rrc00
10/12/2026, 13:05:01AnnouncementAS2192849134 53356 6939 3356 2192823.129.32.61rrc00
10/12/2026, 13:05:01AnnouncementAS2192824482 2914 3356 21928203.175.175.15rrc00
10/11/2026, 00:50:08AnnouncementAS2192849673 3216 3356 2192894.247.111.254rrc00
10/10/2026, 23:20:22Withdrawal——195.128.231.254rrc00
10/10/2026, 23:20:06AnnouncementAS2192849432 215510 31543 174 21928195.128.231.254rrc00
10/10/2026, 10:50:20AnnouncementAS2192817639 3356 21928202.69.160.152rrc00
10/9/2026, 09:00:11AnnouncementAS2192857821 12586 3257 3356 21928193.160.39.1rrc00
10/9/2026, 05:35:03AnnouncementAS219287018 3356 2192812.0.1.63rrc00
10/9/2026, 05:30:44AnnouncementAS21928132825 3356 2192843.251.115.197rrc00
10/9/2026, 05:30:34AnnouncementAS2192850300 3356 21928176.12.110.8rrc00
10/9/2026, 05:30:27AnnouncementAS2192820514 1299 174 21928217.151.205.147rrc00
10/9/2026, 05:30:24AnnouncementAS2192858057 174 21928193.33.94.251rrc00
10/9/2026, 05:30:20AnnouncementAS219283333 3320 3356 21928193.0.0.56rrc00
10/9/2026, 05:30:20AnnouncementAS21928328840 327727 174 21928102.208.105.2rrc00
10/9/2026, 05:30:19AnnouncementAS2192855720 2914 3356 2192845.116.179.212rrc00
10/9/2026, 05:30:19AnnouncementAS2192850628 3356 21928178.208.11.4rrc00
10/9/2026, 05:30:19AnnouncementAS2192838001 3491 174 21928202.150.221.37rrc00
10/9/2026, 05:30:18AnnouncementAS2192859919 9002 3356 219285.178.95.254rrc00
10/9/2026, 05:30:14AnnouncementAS2192834927 1299 3356 21928193.148.251.1rrc00
10/9/2026, 05:30:13AnnouncementAS2192814907 3356 21928208.80.153.193rrc00
10/9/2026, 05:30:13AnnouncementAS21928132825 3356 174 2192843.251.115.197rrc00
10/9/2026, 05:30:10AnnouncementAS2192837989 56300 132132 4657 174 21928203.123.48.6rrc00
10/9/2026, 05:30:09AnnouncementAS21928202365 50673 174 219285.255.90.109rrc00
10/9/2026, 05:30:08AnnouncementAS2192817639 3356 21928202.69.160.152rrc00
10/9/2026, 05:30:08AnnouncementAS2192834927 1299 174 21928193.148.251.1rrc00
10/9/2026, 05:30:07AnnouncementAS219283333 1273 3356 21928193.0.0.56rrc00
10/9/2026, 05:30:06Withdrawal——165.16.221.66rrc00
10/9/2026, 05:30:06AnnouncementAS2192857381 50304 1299 3356 21928193.150.22.240rrc00
10/9/2026, 05:30:05AnnouncementAS21928216285 8280 6762 3356 2192884.54.49.1rrc00
10/9/2026, 05:30:04AnnouncementAS2192858057 1836 3356 21928193.33.94.251rrc00
10/9/2026, 05:30:02AnnouncementAS219281403 577 3356 21928198.58.198.252rrc00
10/9/2026, 05:30:02AnnouncementAS2192850304 1299 3356 2192831.169.49.228rrc00
10/9/2026, 05:30:00AnnouncementAS2192829504 39392 174 21928185.193.84.191rrc00
10/9/2026, 05:30:00AnnouncementAS219283549 3356 21928208.51.134.248rrc00
10/9/2026, 05:30:00AnnouncementAS2192829504 39392 1299 3356 21928185.193.84.191rrc00
10/9/2026, 05:30:00AnnouncementAS2192859919 9002 3356 219285.178.95.254rrc00
10/9/2026, 05:10:35AnnouncementAS2192849673 31500 31133 23764 2914 3356 2192894.247.111.254rrc00
10/9/2026, 05:10:35AnnouncementAS2192849673 31500 3216 6453 174 2192894.247.111.254rrc00
10/9/2026, 05:10:34AnnouncementAS2192850300 174 21928176.12.110.8rrc00
10/9/2026, 05:10:29AnnouncementAS21928202365 50673 33891 3320 3356 219285.255.90.109rrc00
10/9/2026, 05:10:27Withdrawal——193.33.94.251rrc00
10/9/2026, 05:10:21AnnouncementAS2192844393 35710 4809 3320 3356 2192849.12.70.222rrc00
10/9/2026, 05:10:19AnnouncementAS2192817639 9304 2914 3356 21928202.69.160.152rrc00
10/9/2026, 05:10:18AnnouncementAS2192849673 31500 3216 6453 174 2192894.247.111.254rrc00
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