187.185.240.0/21 Cablevision, S.A. de C.V.
Announced by AS28548 Cablevision, S.A. de C.V. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 187.185.240.0/21
Prefix
Origin
AS28548 AS28548
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 7 covering
In RouteViews
2026-10-12 16:02 UTC
Paths
How 187.185.240.0/21 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 18734 28548
| Origin | AS28548 Cablevision, S.A. de C.V. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 32098 18734×4 28548
| Origin | AS28548 Cablevision, S.A. de C.V. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 18h 17m ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 18734 28548
| Origin | AS28548 Cablevision, S.A. de C.V. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 22h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS28548 to originate 187.185.240.0/20 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 187.185.240.0/20 | /21 | AS28548 AS28548 | LACNIC |
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 |
|---|---|---|---|---|
| 187.185.240.0/21 | AS28548 AS28548 | RADB | PREFIJO IZZI IXTAPALUCA IPV4 | MAINT-AS18734 |
| 187.185.240.0/20 covering | AS28548 AS28548 | LACNIC | LACNIC generated route for Cablemas Telecomunicaciones SA de CV | MNT-MX-CTSC6-LACNIC |
| 187.184.0.0/15 covering | AS18734 AS18734 | RADB | Route from Cablemas | MAINT-AS18734 |
| 187.184.0.0/15 covering | AS28509 AS28509 | RADB | Customer Cablemas | MAINT-AS32098 |
| 187.184.0.0/15 covering | AS28512 AS28512 | RADB | COLUMBUS NETWORKS TRANSIT CUSTOMERS | MAINT-AS23520 |
| 187.184.0.0/15 covering | AS28545 AS28545 | RADB | COLUMBUS NETWORKS TRANSIT CUSTOMERS | MAINT-AS23520 |
| 187.184.0.0/15 covering | AS32098 TRANSTELCO-INC | RADB | Customer Bestel | MAINT-AS32098 |
| 187.184.0.0/14 covering | AS32098 TRANSTELCO-INC | RADB | Customer | MAINT-AS32098 |