Prefix profile

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

131.0.4.0/23

Currently validIPv4

Origin ASNAS61855

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 observed11/11/2026, 00:00:00CHA.LA BGP data

View BGP history RPKI check RDAP registration

Prefix: 131.0.4.0/23
Current status: Currently valid
Origin ASN: AS61855
First observed: 8/28/2026, 10:15:27
Last observed: 11/11/2026, 00:00:00

Peer43Visible peers

Collector1Collectors

Announcements6Last 7 days, hourly aggregate

Withdrawals0Last 7 days, hourly aggregate

Origin ASN1Observed ASNs

Current routes and paths

43 observed

Prefix	Origin ASN	AS path	Path length	Peer	Collector	Status
131.0.4.0/23	AS61855	`14907 3356 28580 61855`	4	208.80.153.193	rrc00	Currently valid
131.0.4.0/23	AS61855	`48185 37468 28580 61855`	4	195.90.96.2	rrc00	Currently valid
131.0.4.0/23	AS61855	`20514 1299 37468 28580 61855`	5	217.151.205.147	rrc00	Currently valid
131.0.4.0/23	AS61855	`216285 8280 6762 13786 28146 61855`	6	84.54.49.1	rrc00	Currently valid
131.0.4.0/23	AS61855	`45049 6696 37468 28580 61855`	5	194.28.97.2	rrc00	Currently valid
131.0.4.0/23	AS61855	`206499 34549 37468 28580 61855`	5	45.14.68.69	rrc00	Currently valid
131.0.4.0/23	AS61855	`37989 56300 132132 4657 6453 268624 28146 61855`	8	203.123.48.6	rrc00	Currently valid
131.0.4.0/23	AS61855	`34927 1299 37468 28580 61855`	5	193.148.251.1	rrc00	Currently valid
131.0.4.0/23	AS61855	`49673 20485 37468 28580 61855`	5	94.247.111.254	rrc00	Currently valid
131.0.4.0/23	AS61855	`20205 6939 28146 61855`	4	64.246.96.5	rrc00	Currently valid
131.0.4.0/23	AS61855	`57821 12586 3257 37468 28580 61855`	6	193.160.39.1	rrc00	Currently valid
131.0.4.0/23	AS61855	`58057 1836 3356 28580 61855`	5	193.33.94.251	rrc00	Currently valid
131.0.4.0/23	AS61855	`328840 327727 174 13786 28146 61855`	6	102.208.105.2	rrc00	Currently valid
131.0.4.0/23	AS61855	`59919 9002 37468 28580 61855`	5	5.178.95.254	rrc00	Currently valid
131.0.4.0/23	AS61855	`3549 3356 28580 61855`	4	208.51.134.248	rrc00	Currently valid
131.0.4.0/23	AS61855	`34549 37468 28580 61855`	4	80.77.16.114	rrc00	Currently valid
131.0.4.0/23	AS61855	`38001 37468 28580 61855`	4	202.150.221.37	rrc00	Currently valid
131.0.4.0/23	AS61855	`57381 50304 37468 28580 61855`	5	193.150.22.240	rrc00	Currently valid
131.0.4.0/23	AS61855	`55720 6939 28146 61855`	4	103.212.68.10	rrc00	Currently valid
131.0.4.0/23	AS61855	`34927 56655 6939 28146 61855`	5	45.134.89.1	rrc00	Currently valid
131.0.4.0/23	AS61855	`7018 3356 28580 61855`	4	12.0.1.63	rrc00	Currently valid
131.0.4.0/23	AS61855	`49432 48362 37468 28580 61855`	5	195.128.231.254	rrc00	Currently valid
131.0.4.0/23	AS61855	`4608 1221 4637 3356 28580 61855`	6	203.119.104.1	rrc00	Currently valid
131.0.4.0/23	AS61855	`3333 37468 28580 61855`	4	193.0.0.56	rrc00	Currently valid
131.0.4.0/23	AS61855	`1403 577 3491 22356 13786 28146 61855`	7	198.58.198.252	rrc00	Currently valid
131.0.4.0/23	AS61855	`22652 37468 28580 61855`	4	45.61.0.85	rrc00	Currently valid
131.0.4.0/23	AS61855	`29504 39392 33891 37468 28580 61855`	6	185.193.84.191	rrc00	Currently valid
131.0.4.0/23	AS61855	`55720 2914 268624 28146 61855`	5	45.116.179.212	rrc00	Currently valid
131.0.4.0/23	AS61855	`202365 50673 37468 28580 61855`	5	5.255.90.109	rrc00	Currently valid
131.0.4.0/23	AS61855	`50304 37468 28580 61855`	4	31.169.49.228	rrc00	Currently valid
131.0.4.0/23	AS61855	`44393 58057 6939 28146 61855`	5	49.12.70.222	rrc00	Currently valid
131.0.4.0/23	AS61855	`50628 3356 28580 61855`	4	178.208.11.4	rrc00	Currently valid
131.0.4.0/23	AS61855	`61218 6939 28580 61855`	4	143.246.179.232	rrc00	Currently valid
131.0.4.0/23	AS61855	`17639 37468 28580 61855`	4	202.69.160.152	rrc00	Currently valid
131.0.4.0/23	AS61855	`13830 971 3356 28580 61855`	5	161.129.152.2	rrc00	Currently valid
131.0.4.0/23	AS61855	`213241 37468 28580 61855`	4	89.42.52.8	rrc00	Currently valid
131.0.4.0/23	AS61855	`24482 28146 61855`	3	203.175.175.15	rrc00	Currently valid
131.0.4.0/23	AS61855	`37721 37468 28580 61855`	4	165.16.221.66	rrc00	Currently valid
131.0.4.0/23	AS61855	`58057 34549 37468 28580 61855`	5	194.50.92.251	rrc00	Currently valid
131.0.4.0/23	AS61855	`49134 53356 6939 28146 61855`	5	23.129.32.61	rrc00	Currently valid
131.0.4.0/23	AS61855	`852 3491 22356 13786 28146 61855`	6	154.11.12.212	rrc00	Currently valid
131.0.4.0/23	AS61855	`204092 37468 28580 61855`	4	89.234.186.6	rrc00	Currently valid
131.0.4.0/23	AS61855	`132825 174 13786 28146 61855`	5	43.251.115.197	rrc00	Currently valid

Recent event window

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

Last observed: 11/10/2026, 09:00:00
Peers in window: 1
Collectors in window: 1
Average path length: 4.0
Longest path: 4

Announcement / withdrawal history

Latest 30

Time	Event	Origin ASN	AS path	Peer	Collector
11/10/2026, 09:10:22	Announcement	AS61855	`50300 37468 28580 61855`	176.12.110.8	rrc00
11/10/2026, 06:55:12	Announcement	AS61855	`22652 1299 37468 28580 61855`	45.61.0.85	rrc00
11/9/2026, 20:50:02	Announcement	AS61855	`34927 1299 37468 28580 61855`	193.148.251.1	rrc00
11/9/2026, 17:55:13	Announcement	AS61855	`202365 50673 174 3356 28146 61855`	5.255.90.109	rrc00
11/9/2026, 17:55:11	Announcement	AS61855	`204092 198978 174 3356 28146 61855`	89.234.186.6	rrc00
11/9/2026, 07:55:07	Announcement	AS61855	`57821 12586 3257 30371 13786 28146 61855`	193.160.39.1	rrc00
11/7/2026, 23:05:28	Announcement	AS61855	`29504 39392 1299 3356 28146 61855`	185.193.84.191	rrc00
11/7/2026, 19:10:39	Announcement	AS61855	`34927 1299 3356 28146 61855`	193.148.251.1	rrc00
11/7/2026, 14:25:23	Announcement	AS61855	`328840 327727 174 13786 28146 61855`	102.208.105.2	rrc00
11/7/2026, 14:25:07	Withdrawal	—	`—`	102.208.105.2	rrc00
11/7/2026, 08:25:10	Withdrawal	—	`—`	102.208.105.2	rrc00
11/6/2026, 17:10:18	Withdrawal	—	`—`	102.208.105.2	rrc00
11/5/2026, 23:20:13	Announcement	AS61855	`37721 37468 28580 61855`	165.16.221.66	rrc00
11/5/2026, 21:10:37	Withdrawal	—	`—`	195.128.231.254	rrc00
11/4/2026, 21:10:25	Announcement	AS61855	`328840 327727 174 13786 28146 61855`	102.208.105.2	rrc00
11/4/2026, 20:45:32	Announcement	AS61855	`206499 34549 37468 28580 61855`	45.14.68.69	rrc00
11/4/2026, 16:15:43	Announcement	AS61855	`328840 327727 174 13786 28146 61855`	102.208.105.2	rrc00
11/4/2026, 16:15:21	Withdrawal	—	`—`	102.208.105.2	rrc00
11/3/2026, 05:45:19	Announcement	AS61855	`37721 37468 28580 61855`	165.16.221.66	rrc00
11/3/2026, 04:00:17	Withdrawal	—	`—`	102.208.105.2	rrc00
11/3/2026, 02:10:37	Announcement	AS61855	`328840 327727 174 13786 28146 61855`	102.208.105.2	rrc00
11/2/2026, 23:10:59	Announcement	AS61855	`14907 3356 28580 61855`	208.80.153.193	rrc00
11/2/2026, 23:10:28	Announcement	AS61855	`13830 971 3356 28580 61855`	161.129.152.2	rrc00
11/1/2026, 02:50:12	Announcement	AS61855	`49134 53356 6939 28146 61855`	23.129.32.61	rrc00
10/23/2026, 22:00:10	Announcement	AS61855	`37989 56300 132132 4657 6453 13786 28146 61855`	203.123.48.6	rrc00
10/23/2026, 22:00:02	Announcement	AS61855	`55720 3257 37468 28580 61855`	45.116.179.212	rrc00
10/23/2026, 06:31:01	Announcement	AS61855	`29504 39392 33891 37468 28580 61855`	185.193.84.191	rrc00
10/23/2026, 04:05:13	Announcement	AS61855	`4608 1221 4637 3356 28580 61855`	203.119.104.1	rrc00
10/22/2026, 11:20:26	Announcement	AS61855	`1403 577 3356 28146 61855`	198.58.198.252	rrc00
10/22/2026, 03:20:26	Announcement	AS61855	`17639 37468 28580 61855`	202.69.160.152	rrc00

Hourly changes

SEVEN-DAY WINDOW · 5 time points

Time	Announcements	Peer	Collector	Origin ASN	AS path
11/10/2026, 09:00:00	1	1	1	1	4.0 / 4
11/10/2026, 06:00:00	1	1	1	1	5.0 / 5
11/9/2026, 20:00:00	1	1	1	1	5.0 / 5
11/9/2026, 17:00:00	2	2	1	1	6.0 / 6
11/9/2026, 07:00:00	1	1	1	1	7.0 / 7

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