AS21054 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
- AS21054
- Name
- Natwest Markets PLC
- Organisation
- Natwest Markets PLC
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2001-08-08
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
15 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 155.136.0.0/16 v4 | no ROA | 41 | 37721127321054 | 2026-09-18 |
| 155.136.0.0/17 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.60.0/22 v4 | no ROA | 41 | 37721127321054 | 2026-09-18 |
| 155.136.60.0/24 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.61.0/24 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.62.0/24 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.63.0/24 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.128.0/17 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.144.0/24 v4 | no ROA | 11 | 380013278721054 | 2026-10-02 |
| 155.136.146.0/24 v4 | no ROA | 11 | 380013278721054 | 2026-10-02 |
| 155.136.197.0/24 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.200.0/23 v4 | no ROA | 15 | 345492914127321054 | 2026-09-18 |
| 155.136.202.0/23 v4 | no ROA | 11 | 345492914127321054 | 2026-09-18 |
| 155.136.202.0/24 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |
| 155.136.203.0/24 v4 | no ROA | 43 | 3278721054 | 2026-09-18 |