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Prefix profile

Review current routes, sources, visibility and BGP change evidence for a prefix.

172.56.136.0/23

Currently validIPv4

Origin ASNAS21928

This profile is based on CHA.LA's maintained BGP route state, hourly aggregates and event history; fields without observations are shown as not recorded.
Last observed10/15/2026, 16:00:00CHA.LA BGP data
View BGP historyRPKI checkRDAP registration
Prefix
172.56.136.0/23
Current status
Currently valid
Origin ASN
AS21928
First observed
9/4/2026, 17:55:24
Last observed
10/15/2026, 16:00:00
Peer3Visible peers
Collector1Collectors
Announcements1Last 7 days, hourly aggregate
Withdrawals1Last 7 days, hourly aggregate
Origin ASN1Observed ASNs

Current routes and paths

4 observed
PrefixOrigin ASNAS pathPath lengthPeerCollectorStatus
172.56.136.0/23AS2192820205 21928264.246.96.5rrc00Currently valid
172.56.136.0/23AS219284608 1221 4637 219284203.119.104.1rrc00Currently valid
172.56.136.0/23AS2192837989 56300 132132 4657 4637 219286203.123.48.6rrc00Currently valid
172.56.136.0/23—Not recorded—89.234.186.6rrc00Withdrawn

Recent event window

Only peers and collectors that produced events in this hour are counted.

Last observed
10/14/2026, 01:00:00
Peers in window
1
Collectors in window
1
Average path length
9.0
Longest path
9

Announcement / withdrawal history

Latest 8
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
10/2/2026, 11:35:00AnnouncementAS219284608 1221 4637 21928203.119.104.1rrc00
9/29/2026, 02:00:06AnnouncementAS21928204092 20766 29169 35280 8966 15802 58453 21928 21928 2192889.234.186.6rrc00
9/29/2026, 02:00:06AnnouncementAS21928204092 20766 29169 35280 7713 23764 8966 4637 2192889.234.186.6rrc00
9/11/2026, 05:10:05AnnouncementAS21928204092 20766 29169 35280 8966 15802 58453 21928 21928 2192889.234.186.6rrc00
9/11/2026, 05:10:05AnnouncementAS21928204092 20766 29169 35280 7713 23764 8966 4637 2192889.234.186.6rrc00
9/4/2026, 17:55:24Withdrawal——64.246.96.5rrc00

Hourly changes

SEVEN-DAY WINDOW · 1 time points
TimeAnnouncementsWithdrawalsPeerCollectorOrigin ASNAS path
10/14/2026, 01:00:00111119.0 / 9
CHA.LA BGP profileThis page shows collected RIPE RIS route state, hourly aggregates and announcement / withdrawal events. Origin ASNs, peers and collectors represent an observation view, not the complete global routing table.Data source: CHA.LA BGP data · Query window: last 7 days