ResearchRouting table, looking glass, RPKI & IRR

71.19.136.0/24 Comcast Cable Communications, LLC

Announced by AS33651 Comcast Cable Communications, LLC. RPKI valid Seen by 5 of our 5 looking glass sessions. Also originated by AS33667

What the table says about 71.19.136.0/24

Origin
AS33651 CMCS
RPKI
RPKI valid
Size
256 addresses
Less specific
none
More specifics
0
IRR route objects
6 exact, 0 covering
In RouteViews
2026-10-12 04:03 UTC

How 71.19.136.0/24 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 33667
OriginAS33667 Comcast Cable Communications, LLC
Origin codeIGP
Communities3356:3 3356:86 3356:575 3356:666 3356:901 3356:2011 33667:2955 36601:150 36601:2001 36601:13760
Updated4d 3h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 33667
OriginAS33667 Comcast Cable Communications, LLC
Origin codeIGP
Communities903:900 903:13760
Updated4d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 7922 33651
OriginAS33651 Comcast Cable Communications, LLC
Origin codeIGP
Communities36295:100
Updated4d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 7922 33651
OriginAS33651 Comcast Cable Communications, LLC
Origin codeIGP
Communities174:21000 174:22013
Updated4d 11h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 7922 33651
OriginAS33651 Comcast Cable Communications, LLC
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated8d 4h ago

Route origin authorizations

Covered by a ROA authorizing AS33651 to originate 71.19.136.0/24 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
71.19.136.0/24/24AS33651 CMCSARIN
71.19.136.0/24/24AS33667 CMCSARIN
71.19.136.0/24/24AS55201 SKYQUANTUM-INTERNET-SERVICEARIN

Route objects

Registered in the IRR for this prefix and the ones covering it. Look it up live.

RouteOriginSourceDescriptionMaintained by
71.19.136.0/24AS33651 CMCSARINUsed by EndUserMNT-DCL-577
71.19.136.0/24AS33667 CMCSARINUsed by EndUserMNT-DCL-577
71.19.136.0/24AS55201 SKYQUANTUM-INTERNET-SERVICEARINUsed by EndUserMNT-DCL-577
71.19.136.0/24AS33651 CMCSRADBautogenMAINT-AS834
71.19.136.0/24AS33667 CMCSRADBautogenMAINT-AS834
71.19.136.0/24AS55201 SKYQUANTUM-INTERNET-SERVICERADBautogenMAINT-AS834

Check 71.19.136.0/24 live