209.28.0.0/16 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 209.28.0.0/16
Prefix
Origin
AS3300 BT
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
1
IRR route objects
3 exact, 0 covering
In RouteViews
2026-10-12 20:02 UTC
Paths
How 209.28.0.0/16 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 | 4d 20h 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 4h 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 4h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS3300 to originate 209.28.0.0/16 up to /24. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 209.28.0.0/16 | /24 | 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 |
|---|---|---|---|---|
| 209.28.0.0/16 | AS3300 BT | ALTDB | Proxy registration to prevent harm from ARIN-NONAUTH shutdown | MAINT-AS7034 |
| 209.28.0.0/16 | AS3300 BT | ARIN | BT-GIIB | MNT-INFO |
| 209.28.0.0/16 | AS3300 BT | REACH | REACH (Customer Route) | MAINT-REACH-NOC |
More specific
Prefixes inside 209.28.0.0/16
1 announced prefix fall inside this one.