121.1.52.0/22 Smart Broadband, Inc.
Announced by AS10139 Smart Broadband, Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 121.1.52.0/22
Prefix
Origin
AS10139 SMARTBRO-PH-AP
RPKI
RPKI valid
Size
1,024 addresses
Less specific
More specifics
0
IRR route objects
0 exact, 5 covering
In RouteViews
2026-10-12 20:02 UTC
Paths
How 121.1.52.0/22 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 3356 9299 10139
| Origin | AS10139 Smart Broadband, Inc. |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 11h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 9299 10139
| Origin | AS10139 Smart Broadband, Inc. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 11h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 9299 10139
| Origin | AS10139 Smart Broadband, Inc. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 4h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS10139 to originate 121.1.32.0/19 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 121.1.32.0/19 | /24 | AS10139 SMARTBRO-PH-AP | APNIC |
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 |
|---|---|---|---|---|
| 121.1.48.0/21 covering | AS10139 SMARTBRO-PH-AP | NTTCOM | Smart | MAINT-PLDT |
| 121.1.48.0/20 covering | AS10139 SMARTBRO-PH-AP | NTTCOM | Smart | MAINT-PLDT |
| 121.1.32.0/19 covering | AS10139 SMARTBRO-PH-AP | NTTCOM | Proxy-registered route object | MAINT-AS9304 |
| 121.1.0.0/18 covering | AS10139 SMARTBRO-PH-AP | NTTCOM | Weroam Meridian | MAINT-PLDT |
| 121.1.0.0/18 covering | AS9299 IPG-AS-AP | RADB | HGC (customer route) | MAINT-AS9304 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.