81.23.240.0/23 Castor Marine B.V.
Announced by AS61429 Castor Marine B.V. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 81.23.240.0/23
Prefix
Origin
AS61429 AS-CASTOR
RPKI
RPKI valid
Size
512 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-14 16:02 UTC
Paths
How 81.23.240.0/23 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 13760 3356 3257 61429
| Origin | AS61429 Castor Marine B.V. |
| Origin code | IGP |
| Communities | 3257:3257 3356:3 3356:22 3356:86 3356:575 3356:666 3356:901 3356:2013 36601:150 36601:2001 36601:13760 |
| Updated | 10h 56m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 3257 61429
| Origin | AS61429 Castor Marine B.V. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 21h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 1299 3257 61429
| Origin | AS61429 Castor Marine B.V. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 1h 36m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS61429 to originate 81.23.240.0/23 up to /23. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 81.23.240.0/23 | /23 | AS61429 AS-CASTOR | 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 |
|---|---|---|---|---|
| 81.23.240.0/23 | AS61429 AS-CASTOR | RIPE | Castor Holding B.V. | CASTOR-MNT |