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BGP history

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

172.56.136.0/23

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 observed10/14/2026, 01:30:08Open Prefix profile →
Route events27 days
Announcement1Route reachability advertised
Withdrawal1Route reachability withdrawn
Origin change0Observed origin-set changes

Announcement and withdrawal timeline

Oct 13, 19 – Oct 14, 01Announcements 1Withdrawals 1AS21928
AnnouncementWithdrawalOrigin changeAll times use UTC
Visible peers
1
Collectors
1
Latest origins
AS21928
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
10/14/2026, 01:30:08AnnouncementAS21928204092 20766 29169 35280 7713 23764 8966 4637 2192889.234.186.6rrc00
10/14/2026, 01:30:08Withdrawal——89.234.186.6rrc00
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