155.136.197.0/24 no ROA
Announced by AS21054 Natwest Markets PLC.
Origin
| Origin AS | RPKI | Peers seeing it | Sample path | First seen | Last seen |
|---|---|---|---|---|---|
| AS21054 Natwest Markets PLC | no ROA | 44 | 3278721054 | 2026-09-18 | 2026-10-26 |
RPKI
No ROA covers this prefix
No ROA covers this prefix, so origin validation returns "unknown". That is not a fault; most of the table is still unsigned.
Registry
Who this address space is delegated to, regardless of whether it is routed
- Delegated block
- 155.136.0.0/16
- RIR
- RIPENCC
- Country
- 🇬🇧 GB
- Status
- assigned
- Allocated
- 1991-11-08
Less specific routes
Announced prefixes that contain this one
| Prefix | Origin | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|---|
| 155.136.128.0/17 v4 | AS21054 Natwest Markets PLC | no ROA | 43 | 3278721054 | 2026-10-25 |
| 155.136.128.0/17 v4 | AS21301 Natwest Markets PLC | no ROA | 1 | 21324190023278721301 | 2026-10-03 |
| 155.136.0.0/16 v4 | AS21301 Natwest Markets PLC | no ROA | 20 | 50304285621301 | 2026-10-03 |
| 155.136.0.0/16 v4 | AS21054 Natwest Markets PLC | no ROA | 22 | 37721127321054 | 2026-10-04 |
More specific routes
0 announced prefixes inside this one
Nothing more specific is announced.