172.221.64.0/18 Charter Communications LLC
Announced by AS33588 Charter Communications LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 172.221.64.0/18
Prefix
Origin
AS33588 BRESNAN-33588
RPKI
RPKI valid
Size
16,384 addresses
Less specific
none
More specifics
0
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 02:24 UTC
Paths
How 172.221.64.0/18 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 20115 33588
| Origin | AS33588 Charter Communications LLC |
| Origin code | IGP |
| Communities | 13760:3109 36601:150 36601:2001 36601:13760 |
| Updated | 4d 0h ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 20115 33588
| Origin | AS33588 Charter Communications LLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 4d 8h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 20115 33588
| Origin | AS33588 Charter Communications LLC |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 4d 8h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS33588 to originate 172.221.64.0/18 up to /18. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 172.221.64.0/18 | /18 | AS33588 BRESNAN-33588 | 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 |
|---|---|---|---|---|
| 172.221.64.0/18 | AS33588 BRESNAN-33588 | RADB | Charter Communications | MAINT-RR |