BGP history
Review announcements, withdrawals and observed origin changes for a Prefix over time, with the underlying events.
172.56.120.0/21
Observations availableIPv4Latest originsAS21928
Events come from RIPE RIS route observations stored by CHA.LA; results represent collector visibility, not the complete global routing table.Route events67 days
Announcement6Route reachability advertised
Withdrawal0Route reachability withdrawn
Origin change0Observed origin-set changes
Announcement and withdrawal timeline
Oct 14, 01 – Oct 14, 07Announcements 2Withdrawals 0AS21928
AnnouncementWithdrawalOrigin changeAll times use UTC
- Visible peers
- 6
- Collectors
- 1
- Latest origins
- AS21928
- Aggregate points
- 4
Observed origin-set changes
No origin-set changes were observed in the last 7 days.
Announcement and withdrawal detail
| Time | Event | Origin ASN | AS path | Peer | Collector |
|---|---|---|---|---|---|
| 10/14/2026, 05:40:35 | Announcement | AS21928 | 49134 53356 6424 6461 174 21928 | 23.129.32.61 | rrc00 |
| 10/14/2026, 03:35:28 | Announcement | AS21928 | 328840 327727 174 21928 | 102.208.105.2 | rrc00 |
| 10/10/2026, 23:20:06 | Announcement | AS21928 | 49432 215510 31543 174 21928 | 195.128.231.254 | rrc00 |
| 10/10/2026, 10:50:20 | Announcement | AS21928 | 17639 21928 | 202.69.160.152 | rrc00 |
| 10/9/2026, 09:00:11 | Announcement | AS21928 | 57821 12586 3257 174 21928 | 193.160.39.1 | rrc00 |
| 10/9/2026, 03:30:26 | Announcement | AS21928 | 55720 3257 174 21928 | 45.116.179.212 | rrc00 |