128.121.15.0/24 NTT United Kingdom Ltd
Announced by AS204670 NTT United Kingdom Ltd. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 128.121.15.0/24
Prefix
Origin
AS204670 NTT
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 1 covering
In RouteViews
2026-10-15 16:02 UTC
Paths
How 128.121.15.0/24 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 3356 393423 204670
| Origin | AS204670 NTT United Kingdom Ltd |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 7d 15h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 393423 204670
| Origin | AS204670 NTT United Kingdom Ltd |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 8d 0h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 393423 204670
| Origin | AS204670 NTT United Kingdom Ltd |
| Origin code | IGP |
| Communities | 6461:5998 36295:100 36295:6461 |
| Updated | 1d 2h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS204670 to originate 128.121.15.0/24 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 128.121.15.0/24 | /24 | AS19893 NTT-GLOBAL-DATA-CENTERS-AMERICA-INC | ARIN |
| 128.121.15.0/24 | /24 | AS204670 NTT | ARIN |
| 128.121.0.0/19 | /24 | AS2914 NTT-DATA-2914 | ARIN |
| 128.121.0.0/16 | /16 | AS2914 NTT-DATA-2914 | ARIN |
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 |
|---|---|---|---|---|
| 128.121.15.0/24 | AS204670 NTT | NTTCOM | NTT Cloud Services Division Customer (asbnva05) | MAINT-NTT-CSD |
| 128.121.15.0/24 | AS19893 NTT-GLOBAL-DATA-CENTERS-AMERICA-INC | RADB | NTT Nexcenter - VA3 Scheider Electric | MAINT-AS19893 |
| 128.121.0.0/16 covering | AS2914 NTT-DATA-2914 | NTTCOM | NTT NTTA-128-121 | MAINT-NTTCOM-BB |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.