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Prefix profile

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

172.56.120.0/21

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
172.56.120.0/21
Current status
Currently valid
Origin ASN
AS21928
First observed
8/28/2026, 20:55:17
Last observed
10/15/2026, 16:00:00
Peer40Visible peers
Collector1Collectors
Announcements4Last 7 days, hourly aggregate
Withdrawals0Last 7 days, hourly aggregate
Origin ASN1Observed ASNs

Current routes and paths

40 observed
PrefixOrigin ASNAS pathPath lengthPeerCollectorStatus
172.56.120.0/21AS21928328840 327727 174 219284102.208.105.2rrc00Currently valid
172.56.120.0/21AS2192837989 56300 132132 4657 174 219286203.123.48.6rrc00Currently valid
172.56.120.0/21AS2192849432 48362 1764 174 219285195.128.231.254rrc00Currently valid
172.56.120.0/21AS2192850300 174 219283176.12.110.8rrc00Currently valid
172.56.120.0/21AS21928852 174 219283154.11.12.212rrc00Currently valid
172.56.120.0/21AS2192822652 174 21928345.61.0.85rrc00Currently valid
172.56.120.0/21AS2192857821 12586 3257 174 219285193.160.39.1rrc00Currently valid
172.56.120.0/21AS2192814907 1299 174 219284208.80.153.193rrc00Currently valid
172.56.120.0/21AS219284608 7575 219283203.119.104.1rrc00Currently valid
172.56.120.0/21AS21928206499 34549 174 21928445.14.68.69rrc00Currently valid
172.56.120.0/21AS2192849673 12389 174 21928494.247.111.254rrc00Currently valid
172.56.120.0/21AS2192848185 1299 174 219284195.90.96.2rrc00Currently valid
172.56.120.0/21AS2192820514 1299 174 219284217.151.205.147rrc00Currently valid
172.56.120.0/21AS2192834927 56655 1299 174 21928545.134.89.1rrc00Currently valid
172.56.120.0/21AS219287018 174 21928312.0.1.63rrc00Currently valid
172.56.120.0/21AS21928204092 198978 174 21928489.234.186.6rrc00Currently valid
172.56.120.0/21AS2192855720 6939 1299 174 219285103.212.68.10rrc00Currently valid
172.56.120.0/21AS2192845049 6696 1299 174 219285194.28.97.2rrc00Currently valid
172.56.120.0/21AS2192858057 34549 174 219284194.50.92.251rrc00Currently valid
172.56.120.0/21AS2192837721 174 219283165.16.221.66rrc00Currently valid
172.56.120.0/21AS219281403 577 174 219284198.58.198.252rrc00Currently valid
172.56.120.0/21AS21928202365 50673 174 2192845.255.90.109rrc00Currently valid
172.56.120.0/21AS2192817639 219282202.69.160.152rrc00Currently valid
172.56.120.0/21AS219283333 1257 174 219284193.0.0.56rrc00Currently valid
172.56.120.0/21AS21928216285 8280 6762 174 21928584.54.49.1rrc00Currently valid
172.56.120.0/21AS2192861218 6939 1299 174 219285143.246.179.232rrc00Currently valid
172.56.120.0/21AS2192824482 219282203.175.175.15rrc00Currently valid
172.56.120.0/21AS2192813830 971 174 219284161.129.152.2rrc00Currently valid
172.56.120.0/21AS2192820205 21928264.246.96.5rrc00Currently valid
172.56.120.0/21AS2192855720 2914 174 21928445.116.179.212rrc00Currently valid
172.56.120.0/21AS2192834927 1299 174 219284193.148.251.1rrc00Currently valid
172.56.120.0/21AS2192844393 394256 174 21928449.12.70.222rrc00Currently valid
172.56.120.0/21AS2192859919 12779 174 2192845.178.95.254rrc00Currently valid
172.56.120.0/21AS2192849134 53356 6424 2914 174 21928623.129.32.61rrc00Currently valid
172.56.120.0/21AS2192858057 174 219283193.33.94.251rrc00Currently valid
172.56.120.0/21AS2192850304 1299 174 21928431.169.49.228rrc00Currently valid
172.56.120.0/21AS21928132825 174 21928343.251.115.197rrc00Currently valid
172.56.120.0/21AS2192829504 39392 174 219284185.193.84.191rrc00Currently valid
172.56.120.0/21AS2192834549 174 21928380.77.16.114rrc00Currently valid
172.56.120.0/21AS2192857381 50304 1299 174 219285193.150.22.240rrc00Currently valid

Recent event window

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

Last observed
10/14/2026, 05:00:00
Peers in window
1
Collectors in window
1
Average path length
6.0
Longest path
6

Announcement / withdrawal history

Latest 30
TimeEventOrigin ASNAS pathPeerCollector
10/14/2026, 05:40:35AnnouncementAS2192849134 53356 6424 6461 174 2192823.129.32.61rrc00
10/14/2026, 03:35:28AnnouncementAS21928328840 327727 174 21928102.208.105.2rrc00
10/10/2026, 23:20:06AnnouncementAS2192849432 215510 31543 174 21928195.128.231.254rrc00
10/10/2026, 10:50:20AnnouncementAS2192817639 21928202.69.160.152rrc00
10/9/2026, 09:00:11AnnouncementAS2192857821 12586 3257 174 21928193.160.39.1rrc00
10/9/2026, 03:30:26AnnouncementAS2192855720 3257 174 2192845.116.179.212rrc00
10/8/2026, 22:35:15AnnouncementAS219287018 174 2192812.0.1.63rrc00
10/8/2026, 17:55:43AnnouncementAS2192861218 6939 1299 174 21928143.246.179.232rrc00
10/8/2026, 09:40:41AnnouncementAS2192814907 2914 174 21928208.80.153.193rrc00
10/7/2026, 17:55:12AnnouncementAS2192849134 53356 6424 6461 174 2192823.129.32.61rrc00
10/7/2026, 16:45:10AnnouncementAS2192814907 1299 174 21928208.80.153.193rrc00
10/7/2026, 14:00:19AnnouncementAS2192837721 174 21928165.16.221.66rrc00
10/7/2026, 10:25:43AnnouncementAS2192829504 39392 174 21928185.193.84.191rrc00
10/7/2026, 10:25:00AnnouncementAS2192829504 15935 174 21928185.193.84.191rrc00
10/5/2026, 00:15:04AnnouncementAS21928328840 327727 174 21928102.208.105.2rrc00
10/4/2026, 09:55:12AnnouncementAS2192858057 34549 174 21928194.50.92.251rrc00
10/3/2026, 09:15:23AnnouncementAS2192837721 174 21928165.16.221.66rrc00
10/1/2026, 18:45:01Withdrawal——102.208.105.2rrc00
10/1/2026, 08:00:33AnnouncementAS2192855720 6939 1299 174 21928103.212.68.10rrc00
10/1/2026, 06:50:12AnnouncementAS21928852 174 21928154.11.12.212rrc00
10/1/2026, 01:25:18AnnouncementAS21928852 174 21928154.11.12.212rrc00
9/30/2026, 21:25:25AnnouncementAS2192849134 53356 6424 2914 174 2192823.129.32.61rrc00
9/30/2026, 11:45:15AnnouncementAS21928852 174 21928154.11.12.212rrc00
9/30/2026, 07:15:20Withdrawal——194.28.97.2rrc00
9/30/2026, 07:15:15Withdrawal——80.77.16.114rrc00
9/30/2026, 07:15:15Withdrawal——194.50.92.251rrc00
9/30/2026, 07:15:15Withdrawal——45.14.68.69rrc00
9/30/2026, 07:15:14AnnouncementAS219281403 577 6453 174 21928198.58.198.252rrc00
9/30/2026, 07:15:13AnnouncementAS2192844393 58057 50673 6453 174 2192849.12.70.222rrc00
9/30/2026, 07:15:13AnnouncementAS21928202365 50673 6830 174 219285.255.90.109rrc00

Hourly changes

SEVEN-DAY WINDOW · 4 time points
TimeAnnouncementsWithdrawalsPeerCollectorOrigin ASNAS path
10/14/2026, 05:00:00101116.0 / 6
10/14/2026, 03:00:00101114.0 / 4
10/10/2026, 23:00:00101115.0 / 5
10/9/2026, 03:00:00101114.0 / 4
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