166.220.0.0/16 AT&T Enterprises, LLC
Announced by AS7018 AT&T Enterprises, LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 166.220.0.0/16
Prefix
Origin
AS7018 ATT-INTERNET4
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
3
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-12 16:02 UTC
Paths
How 166.220.0.0/16 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 174 7018
| Origin | AS7018 AT&T Enterprises, LLC |
| Origin code | IGP |
| Communities | 174:21000 174:22013 36601:150 36601:174 36601:2001 |
| Updated | 4d 13h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 7018
| Origin | AS7018 AT&T Enterprises, LLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 22h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 7018
| Origin | AS7018 AT&T Enterprises, LLC |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 21h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS7018 to originate 166.220.0.0/16 up to /16. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 166.220.0.0/16 | /16 | AS7018 ATT-INTERNET4 | 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 |
|---|---|---|---|---|
| 166.220.0.0/16 | AS7018 ATT-INTERNET4 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 |
| 166.220.0.0/16 | AS20057 ATT-MOBILITY-LLC-AS20057 | LEVEL3 | An ATTWS network | AWS-MNT |
More specific
Prefixes inside 166.220.0.0/16
3 announced prefixes fall inside this one.