ResearchRouting table, looking glass, RPKI & IRR

170.100.128.0/22 Comcast Cable Communications, LLC

Announced by AS33659 Comcast Cable Communications, LLC. RPKI valid Seen by 5 of our 5 looking glass sessions.

What the table says about 170.100.128.0/22

Origin
AS33659 CMCS
RPKI
RPKI valid
Size
1,024 addresses
Less specific
none
More specifics
0
IRR route objects
0 exact, 1 covering
In RouteViews
2026-10-13 20:02 UTC

How 170.100.128.0/22 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 33659
OriginAS33659 Comcast Cable Communications, LLC
Origin codeIGP
Communities3356:3 3356:22 3356:86 3356:575 3356:666 3356:901 3356:2039 33659:2955 36601:150 36601:2001 36601:13760 33659:232:253
Updated5d 20h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 33659
OriginAS33659 Comcast Cable Communications, LLC
Origin codeIGP
Communities903:900 903:13760
Updated6d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 7922 33659
OriginAS33659 Comcast Cable Communications, LLC
Origin codeIGP
Communities6461:5997 36295:100 36295:6461
Updated10h 41m ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 7922 33659
OriginAS33659 Comcast Cable Communications, LLC
Origin codeIGP
Communities174:21000 174:22013
Updated6d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 7922 33659
OriginAS33659 Comcast Cable Communications, LLC
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated9d 22h ago

Route origin authorizations

Covered by a ROA authorizing AS33659 to originate 170.100.128.0/22 up to /22. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
170.100.128.0/22/22AS33659 CMCSRIPE

Route objects

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

RouteOriginSourceDescriptionMaintained by
170.100.0.0/16 coveringAS14455 SUNGARD-RECOVERYRADBProxy Object for CustomerMAINT-AS1828

Check 170.100.128.0/22 live