209.23.192.0/18 Comcast Cable Communications, LLC
Announced by AS7922 Comcast Cable Communications, LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.
Summary
What the table says about 209.23.192.0/18
Prefix
Origin
AS7922 COMCAST-7922
RPKI
RPKI valid
Size
16,384 addresses
Less specific
none
More specifics
11
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-14 04:02 UTC
Paths
How 209.23.192.0/18 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 3356 7922
| Origin | AS7922 Comcast Cable Communications, LLC |
| Origin code | IGP |
| Communities | 3356:3 3356:86 3356:575 3356:666 3356:901 3356:2258 36601:150 36601:2001 |
| Updated | 2h 20m ago |
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 7922
| Origin | AS7922 Comcast Cable Communications, LLC |
| Origin code | IGP |
| Communities | 903:900 903:13760 |
| Updated | 6d 13h ago |
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 7922
| Origin | AS7922 Comcast Cable Communications, LLC |
| Origin code | IGP |
| Communities | 36295:100 |
| Updated | 6d 12h ago |
RPKI
Route origin authorizations
Covered by a ROA authorizing AS7922 to originate 209.23.192.0/18 up to /18. Validate another origin.
| ROA prefix | Max length | Authorized origin | Trust anchor |
|---|---|---|---|
| 209.23.192.0/18 | /18 | AS7922 COMCAST-7922 | 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 |
|---|---|---|---|---|
| 209.23.192.0/18 | AS13385 COMCAST-TELECOMM | LEVEL3 | Comcast Commercial Services - Converged Infrastructure Agg Route | CTI-MNT |
| 209.23.192.0/18 | AS7922 COMCAST-7922 | RADB | Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 | MAINT-AS7922 |
More specific
Prefixes inside 209.23.192.0/18
11 announced prefixes fall inside this one.
Show the 11 prefixes
209.23.192.0/22 AS17035 NBCUNI-17035209.23.201.0/24 AS33651 CMCS209.23.206.0/24 AS63415 GREAT-HEALTHWORKS-4150-BUILDING209.23.207.0/24 AS33462 JANUS-LEXINGTON-MA209.23.210.0/24 AS26868 NCTA-WASHINGTONDC209.23.225.0/24 AS33287 COMCAST-33287209.23.232.0/24 AS32302209.23.239.0/24 AS62526 AXCELIS-TECHNOLOGIES209.23.246.0/24 AS7725 COMCAST-7725209.23.249.0/24 AS33491 COMCAST-33491209.23.253.0/24 AS33651 CMCS