154.51.129.0/24 Cloudflare London, LLC
Announced by AS209242 Cloudflare London, LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 154.51.129.0/24
Prefix
Origin
AS209242 CLOUDFLARESPECTRUM
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
5 exact, 1 covering
In RouteViews
2026-10-14 20:02 UTC
Paths
How 154.51.129.0/24 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 13335 209242
| Origin | AS209242 Cloudflare London, LLC |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 18h 5m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 13335 209242
| Origin | AS209242 Cloudflare London, LLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 4h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 13335 209242
| Origin | AS209242 Cloudflare London, LLC |
| Origin code | IGP |
| Communities | 6461:5998 36295:100 36295:6461 |
| Updated | 6h 28m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS209242 to originate 154.51.129.0/24 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 154.51.129.0/24 | /24 | AS13335 CLOUDFLARENET | ARIN |
| 154.51.129.0/24 | /24 | AS59395 EFAR-AS | ARIN |
| 154.51.129.0/24 | /24 | AS196628 EFAR-Manchester | ARIN |
| 154.51.129.0/24 | /24 | AS209242 CLOUDFLARESPECTRUM | 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 |
|---|---|---|---|---|
| 154.51.129.0/24 | AS13335 CLOUDFLARENET | ARIN | Route Registered for Cogent Communications Customer - SOUTHERN COMMUNICATIONS GROUP LIMITED | MNT-COGC |
| 154.51.129.0/24 | AS59395 EFAR-AS | ARIN | Route Registered for Cogent Communications Customer - SOUTHERN COMMUNICATIONS GROUP LIMITED | MNT-COGC |
| 154.51.129.0/24 | AS196628 EFAR-Manchester | ARIN | Route Registered for Cogent Communications Customer - SOUTHERN COMMUNICATIONS GROUP LIMITED | MNT-COGC |
| 154.51.129.0/24 | AS209242 CLOUDFLARESPECTRUM | ARIN | Route Registered for Cogent Communications Customer - SOUTHERN COMMUNICATIONS GROUP LIMITED | MNT-COGC |
| 154.51.129.0/24 | AS209242 CLOUDFLARESPECTRUM | RADB | Route Registered for Cogent Communications Customer - Innovations ltd | MAINT-AS174 |
| 154.48.0.0/12 covering | AS174 COGENT-174 | RADB | Cogent | MAINT-AS174 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.