37.25.136.0/21 Fastweb SpA
Announced by AS12663 Fastweb SpA. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 37.25.136.0/21
Prefix
Origin
AS12663 VODAFONE-GROUP
RPKI
RPKI valid
Size
2,048 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 4 covering
In RouteViews
2026-10-12 12:02 UTC
Paths
How 37.25.136.0/21 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 12663×2
| Origin | AS12663 Fastweb SpA |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 3d 18h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 1273 12663×2
| Origin | AS12663 Fastweb SpA |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 3d 18h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 1273 12663×2
| Origin | AS12663 Fastweb SpA |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 3d 18h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS12663 to originate 37.25.128.0/17 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 37.25.128.0/17 | /17 | AS1273 CW | RIPE |
| 37.25.128.0/17 | /24 | AS12663 VODAFONE-GROUP | RIPE |
| 37.25.128.0/17 | /24 | AS201917 VF-GROUP-DC1 | RIPE |
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 |
|---|---|---|---|---|
| 37.25.136.0/21 | AS12663 VODAFONE-GROUP | RIPE | Vodafone Group Services | MNT-ON |
| 37.25.128.0/19 covering | AS12663 VODAFONE-GROUP | RIPE | Vodafone Group | MNT-ON |
| 37.25.128.0/18 covering | AS12663 VODAFONE-GROUP | RIPE | Vodafone Group | MNT-ON |
| 37.25.128.0/17 covering | AS1273 CW | RIPE | VF-Group Internet | MNT-ON |
| 37.25.128.0/17 covering | AS12663 VODAFONE-GROUP | RIPE | Vodafone Group Services | MNT-ON |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.