ResearchRouting table, looking glass, RPKI & IRR

209.122.172.0/24 City of Gaithersburg

Announced by AS54724 City of Gaithersburg. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 209.122.172.0/24

Prefix

Origin

AS54724 GAITHERSBURGMDGOV

RPKI

RPKI valid

Size

256 addresses

Less specific

More specifics

IRR route objects

1 exact, 1 covering

In RouteViews

2026-10-16 00:02 UTC

Paths

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 7784 54724

AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 7784 54724

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 7784 54724

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 7784 54724

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 7784 54724

RPKI

Covered by a ROA authorizing AS54724 to originate 209.122.172.0/24 up to /24. Validate another origin.

ROA prefix	Max length	Authorized origin	Trust anchor
209.122.172.0/24	/24	AS54724 GAITHERSBURGMDGOV	ARIN
209.122.0.0/16	/24	AS6079 RCN-AS	ARIN

IRR

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

Route	Origin	Source	Description	Maintained by
209.122.172.0/24	AS54724 GAITHERSBURGMDGOV	RADB	Proxy route object registered by Atlantech Online	MAINT-AS7784
209.122.0.0/16 covering	AS6079 RCN-AS	RADB	RCN-BLK-3 RCN Corporation 650 College Road East Suite 3100 Princeton, NJ 08540 US	MAINT-AS6079

Less specific

Announced prefixes that contain this one, most specific first.

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