206208 looking glass

AS21301 Natwest Markets PLC 🇬🇧 GB

Announcing 15 prefixes, seen at the RIS collectors.

IPv4 prefixes
15
135,424 (529 × /24)
IPv6 prefixes
0
-
Upstreams
3
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it

Registry and operator data

AS number
AS21301
Name
Natwest Markets PLC
Organisation
Natwest Markets PLC
Country
🇬🇧 GB
RIR
RIPENCC
Allocated
2001-10-24

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 15 no ROA (100.0%)

Announcement history

One point per day, recorded at each table import

048111509-1809-2409-3010-0610-1210-1810-2410-25
IPv4 IPv6

Recorded changes

New prefixes and origin changes seen on the live stream

WhenChangePrefixOriginPath
2026-10-25 14:26:47Z origin change 155.136.0.0/17 AS21301 → AS21054 204092207663278721054
2026-10-25 14:26:46Z origin change 155.136.128.0/17 AS21301 → AS21054 333312573278721054
2026-10-25 12:30:34Z origin change 155.136.200.0/23 AS21301 → AS21054 57821125863257127321054210542105421054
2026-10-25 12:30:34Z origin change 155.136.202.0/23 AS21301 → AS21054 57821125863257127321054210542105421054
2026-10-25 12:30:28Z origin change 155.136.0.0/16 AS21054 → AS21301 57821125863257127321301213012130121301
2026-10-24 16:23:54Z origin change 155.136.0.0/16 AS21301 → AS21054 8523257127321054210542105421054
2026-10-24 15:52:23Z origin change 155.136.0.0/16 AS21054 → AS21301 17639285621301213012130121301
2026-10-24 14:02:42Z origin change 155.136.0.0/16 AS21301 → AS21054 58057174127321054210542105421054
2026-10-24 14:02:37Z origin change 155.136.200.0/23 AS21054 → AS21301 58057174127321301213012130121301
2026-10-24 14:02:37Z origin change 155.136.202.0/23 AS21054 → AS21301 58057174127321301213012130121301
2026-10-24 02:48:19Z origin change 155.136.200.0/23 AS21301 → AS21054 244822914127321054210542105421054
2026-10-24 02:48:19Z origin change 155.136.202.0/23 AS21301 → AS21054 244822914127321054210542105421054
2026-10-24 01:32:20Z origin change 155.136.200.0/23 AS21054 → AS21301 50300285621301213012130121301
2026-10-24 01:32:20Z origin change 155.136.202.0/23 AS21054 → AS21301 50300285621301213012130121301
2026-10-23 23:33:06Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-23 23:31:37Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-23 23:22:58Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-23 23:15:28Z origin change 155.136.0.0/17 AS21054 → AS21301 206499345493278721301
2026-10-23 23:15:28Z origin change 155.136.128.0/17 AS21054 → AS21301 206499345493278721301
2026-10-23 23:13:54Z origin change 155.136.128.0/17 AS21301 → AS21054 49432483623278721054
2026-10-23 23:13:54Z origin change 155.136.0.0/17 AS21301 → AS21054 49432483623278721054
2026-10-23 23:13:52Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-23 23:13:22Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-23 23:12:09Z origin change 155.136.202.0/23 AS21054 → AS21301 354933565400285621301213012130121301
2026-10-23 23:11:43Z origin change 155.136.128.0/17 AS21054 → AS21301 349273278721301
2026-10-23 23:11:43Z origin change 155.136.0.0/17 AS21054 → AS21301 349273278721301
2026-10-23 23:11:41Z origin change 155.136.128.0/17 AS21301 → AS21054 3549335612993278721054
2026-10-23 23:11:41Z origin change 155.136.0.0/17 AS21301 → AS21054 3549335612993278721054
2026-10-23 23:11:35Z origin change 155.136.128.0/17 AS21054 → AS21301 176393278721301
2026-10-23 23:11:35Z origin change 155.136.0.0/17 AS21054 → AS21301 176393278721301
2026-10-23 23:11:11Z origin change 155.136.202.0/23 AS21301 → AS21054 354933565400285621054210542105421054
2026-10-23 23:11:05Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-23 23:10:37Z origin change 155.136.0.0/17 AS21301 → AS21054 295043278721054
2026-10-23 23:10:37Z origin change 155.136.128.0/17 AS21301 → AS21054 295043278721054
2026-10-23 23:10:05Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-23 23:07:01Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-23 20:06:34Z origin change 155.136.202.0/23 AS21301 → AS21054 244822914127321054210542105421054
2026-10-23 20:06:34Z origin change 155.136.200.0/23 AS21301 → AS21054 244822914127321054210542105421054
2026-10-23 14:39:49Z origin change 155.136.0.0/16 AS21054 → AS21301 599199002285621301213012130121301
2026-10-23 11:07:27Z origin change 155.136.202.0/23 AS21054 → AS21301 149071299127321301213012130121301
2026-10-23 11:07:27Z origin change 155.136.200.0/23 AS21054 → AS21301 149071299127321301213012130121301
2026-10-23 11:07:27Z origin change 155.136.0.0/16 AS21301 → AS21054 149071299127321054210542105421054
2026-10-23 09:22:01Z origin change 155.136.200.0/23 AS21301 → AS21054 57821125863257127321054210542105421054
2026-10-23 06:31:04Z origin change 155.136.200.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-22 22:24:18Z origin change 155.136.200.0/23 AS21301 → AS21054 57821125863257127321054210542105421054
2026-10-22 22:24:18Z origin change 155.136.202.0/23 AS21301 → AS21054 57821125863257127321054210542105421054
2026-10-22 22:24:18Z origin change 155.136.0.0/16 AS21054 → AS21301 57821125863257127321301213012130121301
2026-10-22 22:21:56Z origin change 155.136.0.0/16 AS21301 → AS21054 57821125863257127321054210542105421054
2026-10-22 22:09:53Z origin change 155.136.0.0/16 AS21054 → AS21301 5738150304285621301213012130121301
2026-10-22 22:09:53Z origin change 155.136.202.0/23 AS21054 → AS21301 5738150304285621301213012130121301
2026-10-22 19:01:44Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-22 18:33:28Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-22 18:30:24Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-22 18:20:58Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-22 18:12:02Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-22 10:48:22Z origin change 155.136.0.0/16 AS21301 → AS21054 149071299127321054210542105421054
2026-10-22 03:20:34Z origin change 155.136.200.0/23 AS21054 → AS21301 17639285621301213012130121301
2026-10-22 03:20:34Z origin change 155.136.202.0/23 AS21054 → AS21301 17639285621301213012130121301
2026-10-22 02:17:15Z origin change 155.136.200.0/23 AS21301 → AS21054 57821125863257127321054210542105421054
2026-10-22 02:16:35Z origin change 155.136.0.0/16 AS21054 → AS21301 57821125863257127321301213012130121301
2026-10-21 19:59:14Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 19:24:38Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 19:19:41Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 19:18:04Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 19:09:45Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 19:08:16Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 19:04:13Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 18:59:24Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 18:57:27Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 18:55:54Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 18:54:36Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 18:53:24Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 18:47:38Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 18:22:20Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 18:13:24Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 17:19:09Z origin change 155.136.0.0/16 AS21301 → AS21054 202056939127321054210542105421054
2026-10-21 17:19:09Z origin change 155.136.200.0/23 AS21054 → AS21301 202056939127321301213012130121301
2026-10-21 17:19:09Z origin change 155.136.202.0/23 AS21054 → AS21301 202056939127321301213012130121301
2026-10-21 17:11:36Z origin change 155.136.200.0/23 AS21301 → AS21054 202056939127321054210542105421054
2026-10-21 17:11:36Z origin change 155.136.202.0/23 AS21301 → AS21054 202056939127321054210542105421054
2026-10-21 17:11:36Z origin change 155.136.0.0/16 AS21054 → AS21301 202056939127321301213012130121301
2026-10-21 17:02:39Z origin change 155.136.0.0/16 AS21301 → AS21054 202056939127321054210542105421054
2026-10-21 17:02:36Z origin change 155.136.200.0/23 AS21054 → AS21301 202056939127321301213012130121301
2026-10-21 17:02:36Z origin change 155.136.202.0/23 AS21054 → AS21301 202056939127321301213012130121301
2026-10-21 16:56:19Z origin change 155.136.0.0/16 AS21054 → AS21301 202056939127321301213012130121301
2026-10-21 16:56:19Z origin change 155.136.200.0/23 AS21301 → AS21054 202056939127321054210542105421054
2026-10-21 16:56:19Z origin change 155.136.202.0/23 AS21301 → AS21054 202056939127321054210542105421054
2026-10-21 16:11:15Z origin change 155.136.0.0/16 AS21301 → AS21054 612186939127321054210542105421054
2026-10-21 12:23:30Z origin change 155.136.200.0/23 AS21054 → AS21301 17639285621301213012130121301
2026-10-21 12:09:06Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 12:00:18Z origin change 155.136.202.0/23 AS21301 → AS21054 2950439392338915400285621054210542105421054
2026-10-21 11:56:46Z origin change 155.136.202.0/23 AS21054 → AS21301 2950439392338915400285621301213012130121301
2026-10-21 09:01:11Z origin change 155.136.202.0/23 AS21301 → AS21054 13830971174127321054210542105421054
2026-10-21 09:01:11Z origin change 155.136.200.0/23 AS21301 → AS21054 13830971174127321054210542105421054
2026-10-21 09:01:11Z origin change 155.136.0.0/16 AS21054 → AS21301 13830971174127321301213012130121301
2026-10-21 08:59:09Z origin change 155.136.0.0/16 AS21301 → AS21054 13830971174127321054210542105421054
2026-10-21 08:59:09Z origin change 155.136.202.0/23 AS21054 → AS21301 13830971174127321301213012130121301
2026-10-21 08:59:09Z origin change 155.136.200.0/23 AS21054 → AS21301 13830971174127321301213012130121301
2026-10-21 08:45:38Z origin change 155.136.202.0/23 AS21301 → AS21054 13830971174127321054210542105421054
2026-10-21 08:45:38Z origin change 155.136.200.0/23 AS21301 → AS21054 13830971174127321054210542105421054