155.136.56.0/22 Natwest Markets PLC
Announced by AS21301 Natwest Markets PLC. RPKI not found Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 155.136.56.0/22
Prefix
Origin
AS21301 UK-NATWEST-AS21301
RPKI
RPKI not found
Size
1,024 addresses
Less specific
More specifics
4
IRR route objects
2 exact, 6 covering
In RouteViews
2026-10-12 08:02 UTC
Paths
How 155.136.56.0/22 is reached
Every path our looking glass collectors hold for this exact prefix. Open one for its attributes, or see them all side by side in the looking glass.
AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 1273 21301×4
| Origin | AS21301 Natwest Markets PLC |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 7h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 5400 2856 21301×4
| Origin | AS21301 Natwest Markets PLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 16h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 1273 21301×4
| Origin | AS21301 Natwest Markets PLC |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 16h ago |
RPKI
Route origin authorizations
No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.
IRR
Route objects
Registered in the IRR for this prefix and the ones covering it. Look it up live.
| Route | Origin | Source | Description | Maintained by |
|---|---|---|---|---|
| 155.136.56.0/22 | AS21054 UK-NATWEST-AS21054 | RIPE | N | RBSG-MNT |
| 155.136.56.0/22 | AS21301 UK-NATWEST-AS21301 | RIPE | N | RBSG-MNT |
| 155.136.0.0/16 covering | AS21054 UK-NATWEST-AS21054 | RADB | Prolexic Technologies, Inc. | MAINT-AS32787 |
| 155.136.0.0/16 covering | AS21301 UK-NATWEST-AS21301 | RADB | Akamai Technologies, Inc. | MAINT-AS32787 |
| 155.136.0.0/16 covering | AS32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK | RADB | Akamai via EMIX | MAINT-AS8966 |
| 155.136.0.0/16 covering | AS21054 UK-NATWEST-AS21054 | RIPE | Royal Bank of Scotland | RBSG-MNT |
| 155.136.0.0/16 covering | AS21301 UK-NATWEST-AS21301 | RIPE | N | RBSG-MNT |
| 155.136.0.0/16 covering | AS32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK | RIPE | Royal Bank of Scotland | MNT-PROLE, RBSG-MNT |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.
More specific
Prefixes inside 155.136.56.0/22
4 announced prefixes fall inside this one.