AS21301 Natwest Markets PLC 🇬🇧 GB
Announcing 12 prefixes, seen at the RIS collectors.
IPv4 prefixes
12
4,352 (17 × /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
Announced prefixes
12 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 155.136.56.0/22 v4 | no ROA | 41 | 37721127321301 | 2026-09-18 |
| 155.136.56.0/24 v4 | no ROA | 43 | 3278721301 | 2026-09-18 |
| 155.136.57.0/24 v4 | no ROA | 43 | 3278721301 | 2026-09-18 |
| 155.136.58.0/24 v4 | no ROA | 43 | 3278721301 | 2026-09-18 |
| 155.136.59.0/24 v4 | no ROA | 43 | 3278721301 | 2026-09-18 |
| 155.136.144.0/24 v4 | no ROA | 19 | 345493278721301 | 2026-09-18 |
| 155.136.146.0/24 v4 | no ROA | 19 | 345493278721301 | 2026-09-18 |
| 155.136.151.0/24 v4 | no ROA | 43 | 3278721301 | 2026-09-18 |
| 155.136.200.0/23 v4 | no ROA | 28 | 37721127321301 | 2026-09-18 |
| 155.136.200.0/24 v4 | no ROA | 43 | 3278721301 | 2026-09-18 |
| 155.136.201.0/24 v4 | no ROA | 43 | 3278721301 | 2026-09-18 |
| 155.136.202.0/23 v4 | no ROA | 31 | 37721127321301 | 2026-09-18 |