123.205.19.0/24 New Century InfoComm Tech Co., Ltd.
Announced by AS9919 New Century InfoComm Tech Co., Ltd. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 123.205.19.0/24
Prefix
Origin
AS9919 NCIC-TW
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
2 exact, 11 covering
In RouteViews
2026-10-14 20:02 UTC
Paths
How 123.205.19.0/24 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 6453 4780 9919
| Origin | AS9919 New Century InfoComm Tech Co., Ltd. |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 6d 19h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 6453 4780 9919
| Origin | AS9919 New Century InfoComm Tech Co., Ltd. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 3h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4780 9919
| Origin | AS9919 New Century InfoComm Tech Co., Ltd. |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 7d 3h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS9919 to originate 123.205.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 123.205.0.0/18 | /24 | AS18049 TINP-TW | APNIC |
| 123.205.0.0/17 | /24 | AS18049 TINP-TW | APNIC |
| 123.205.0.0/16 | /24 | AS4780 SEEDNET | APNIC |
| 123.205.0.0/16 | /24 | AS9919 NCIC-TW | APNIC |
| 123.204.0.0/15 | /24 | AS4780 SEEDNET | APNIC |
| 123.204.0.0/15 | /24 | AS9919 NCIC-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 |
|---|---|---|---|---|
| 123.205.19.0/24 | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.19.0/24 | AS9919 NCIC-TW | RADB | Far Eastone Telecommunications Co., Ltd | MAINT-AS4780 |
| 123.205.18.0/23 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.16.0/22 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.16.0/21 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.16.0/20 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.0.0/19 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.0.0/19 covering | AS18049 TINP-TW | RADB | SeedNet Proxy-registered route object (Customer Router) | MAINT-AS4780 |
| 123.205.0.0/18 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.0.0/18 covering | AS18049 TINP-TW | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 |
| 123.205.0.0/17 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.205.0.0/16 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
| 123.204.0.0/15 covering | AS4780 SEEDNET | RADB | SeedNet | MAINT-AS4780 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.