203.66.100.0/24 Taiwan Semiconductor Manufactoring Company, Ltd.
Announced by AS23675 Taiwan Semiconductor Manufactoring Company, Ltd. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 203.66.100.0/24
Prefix
Origin
AS23675 TSMCGDN-AS-AP
RPKI
RPKI valid
Size
256 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 1 covering
In RouteViews
2026-10-15 04:02 UTC
Paths
How 203.66.100.0/24 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 13335 23675
| Origin | AS23675 Taiwan Semiconductor Manufactoring Company, Ltd. |
| Origin code | IGP |
| Communities | 174:21001 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 1d 1h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 13335 23675
| Origin | AS23675 Taiwan Semiconductor Manufactoring Company, Ltd. |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 7d 12h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 13335 23675
| Origin | AS23675 Taiwan Semiconductor Manufactoring Company, Ltd. |
| Origin code | IGP |
| Communities | 6461:5998 36295:100 36295:6461 |
| Updated | 14h 6m ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS23675 to originate 203.66.100.0/24 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 203.66.100.0/24 | /24 | AS23675 TSMCGDN-AS-AP | APNIC |
| 203.66.0.0/16 | /24 | AS3462 HINET | 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 |
|---|---|---|---|---|
| 203.66.100.0/24 | AS23675 TSMCGDN-AS-AP | RADB | Taiwan Semiconductor Manufactoring Company, Ltd. | MAINT-AS3462 |
| 203.66.0.0/16 covering | AS3462 HINET | RADB | (HiNet) Chunghwa Telecom Co., Ltd. | MAINT-AS3462 |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.