63.250.136.0/23 British Telecommunications Limited
Announced by AS3300 British Telecommunications Limited. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 63.250.136.0/23
Prefix
Origin
AS3300 BT
RPKI
RPKI valid
Size
512 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 3 covering
In RouteViews
2026-10-13 08:02 UTC
Paths
How 63.250.136.0/23 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 13760 7029 3300
| Origin | AS3300 British Telecommunications Limited |
| Origin code | IGP |
| Communities | 7029:2089 36601:150 36601:2001 36601:13760 |
| Updated | 5d 8h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 3300
| Origin | AS3300 British Telecommunications Limited |
| 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 3300
| Origin | AS3300 British Telecommunications Limited |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 17h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS3300 to originate 63.250.136.0/23 up to /23. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 63.250.136.0/23 | /23 | AS3300 BT | ARIN |
| 63.250.128.0/18 | /18 | AS3300 BT | ARIN |
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 |
|---|---|---|---|---|
| 63.250.136.0/23 | AS3300 BT | ARIN | BT-GIIB | MNT-INFO |
| 63.250.136.0/22 covering | AS3300 BT | ARIN | BT GIIB | MNT-INFO |
| 63.250.128.0/18 covering | AS3300 BT | ARIN | BT-IP-ICG/GIIB | MNT-INFO |
| 63.250.128.0/18 covering | AS3300 BT | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.