203.121.232.0/21 DaDa Broadband LTD.
Announced by AS18419 DaDa Broadband LTD. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 203.121.232.0/21
Prefix
Origin
AS18419 DADA-AS-TW
RPKI
RPKI valid
Size
2,048 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 5 covering
In RouteViews
2026-10-13 08:02 UTC
Paths
How 203.121.232.0/21 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 3491 4780 18419
| Origin | AS18419 DaDa Broadband LTD. |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 8h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 9002 4780 18419
| Origin | AS18419 DaDa Broadband LTD. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 5d 17h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 18419
| Origin | AS18419 DaDa Broadband LTD. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 17h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS18419 to originate 203.121.224.0/20 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.121.224.0/20 | /24 | AS4780 SEEDNET | APNIC |
| 203.121.224.0/20 | /24 | AS18419 DADA-AS-TW | 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 |
|---|---|---|---|---|
| 203.121.232.0/21 | AS4780 SEEDNET | RADB | SeedNet Proxy-registered route object (Customer Route: SIGMA BROAD TV CO.,LTD.) | MAINT-AS4780 |
| 203.121.232.0/21 | AS18419 DADA-AS-TW | RADB | Seednet/NCIC MSO for SIGMA-NET CO.,LTD. | MAINT-AS4780 |
| 203.121.224.0/20 covering | AS4780 SEEDNET | RADB | SeedNet Proxy-registered route object (Customer Route: SIGMA BROAD TV CO.,LTD.) | MAINT-AS4780 |
| 203.121.224.0/20 covering | AS18419 DADA-AS-TW | RADB | Seednet/NCIC MSO for SIGMA-NET CO.,LTD. | MAINT-AS4780 |
| 203.121.224.0/19 covering | AS4780 SEEDNET | RADB | SeedNet Proxy-registered route object (Customer Route: SIGMA BROAD TV CO.,LTD.) | MAINT-AS4780 |
| 203.121.224.0/19 covering | AS9919 NCIC-TW | RADB | Proxy-registered route object | MAINT-AS3491 |
| 203.121.224.0/19 covering | AS18419 DADA-AS-TW | RADB | Seednet/NCIC MSO for SIGMA-NET CO.,LTD. | MAINT-AS4780 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.