66.187.0.0/23 Castle Global Inc.
Announced by AS36321 Castle Global Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 66.187.0.0/23
Prefix
Origin
AS36321 CSTL
RPKI
RPKI valid
Size
512 addresses
Less specific
none
More specifics
0
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-13 16:03 UTC
Paths
How 66.187.0.0/23 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 174 36321
| Origin | AS36321 Castle Global Inc. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 174 36321
| Origin | AS36321 Castle Global Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 22h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 36321×2
| Origin | AS36321 Castle Global Inc. |
| Origin code | IGP |
| Communities | 6461:5998 36295:100 36295:6461 |
| Updated | 4h 16m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS36321 to originate 66.187.0.0/23 up to /25. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 66.187.0.0/23 | /25 | AS174 COGENT-174 | ARIN |
| 66.187.0.0/23 | /25 | AS1299 TWELVE99 | ARIN |
| 66.187.0.0/23 | /25 | AS36321 CSTL | 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 |
|---|---|---|---|---|
| 66.187.0.0/23 | AS36321 CSTL | ARIN | 575 market street suite 1500 san francisco CA 94111 United States | MNT-CG-594 |
| 66.187.0.0/23 | AS36321 CSTL | RADB | CSTL-EAST | MAINT-ENELSON-AS36321 |