62.172.0.0/21 British Telecommunications Limited
Announced by AS5400 British Telecommunications Limited. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 62.172.0.0/21
Prefix
Origin
AS5400 BT
RPKI
RPKI valid
Size
2,048 addresses
Less specific
More specifics
0
IRR route objects
1 exact, 1 covering
In RouteViews
2026-10-13 12:02 UTC
Paths
How 62.172.0.0/21 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 5400
| Origin | AS5400 British Telecommunications Limited |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 5d 10h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 5400
| Origin | AS5400 British Telecommunications Limited |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 3h 50m ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 5400
| Origin | AS5400 British Telecommunications Limited |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 5d 19h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS5400 to originate 62.172.0.0/21 up to /21. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 62.172.0.0/21 | /21 | AS5400 BT | RIPE |
| 62.172.0.0/16 | /16 | AS2856 BT-UK-AS | RIPE |
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 |
|---|---|---|---|---|
| 62.172.0.0/21 | AS5400 BT | RIPE | BTIASpanish POP | CIP-MNT |
| 62.172.0.0/16 covering | AS2856 BT-UK-AS | RIPE | BTnet UK Core | BTNET-INFRA-MNT |
Less specific
Covering prefixes
Announced prefixes that contain this one, most specific first.