ResearchRouting table, looking glass, RPKI & IRR

183.172.0.0/15 CERNET2 IX at Tsinghua University

Announced by AS24348 CERNET2 IX at Tsinghua University. RPKI not found Seen by 3 of our 5 looking glass sessions. Also originated by AS4538

Summary

What the table says about 183.172.0.0/15

Prefix

Origin

AS24348 CNGI-BJ-IX2-AS-AP

RPKI

RPKI not found

Size

131,072 addresses

Less specific

More specifics

IRR route objects

0 exact, 2 covering

In RouteViews

2026-10-13 20:02 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.

AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 36295 6939 4635 4538

Origin	AS4538 China Education and Research Network Center
Origin code	IGP
Communities	903:100 903:900
Updated	6d 4h ago

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4635 4538

Origin	AS4538 China Education and Research Network Center
Origin code	IGP
Communities	36295:100
Updated	6d 4h ago

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 4635 4538

Origin	AS4538 China Education and Research Network Center
Origin code	IGP
Communities	none
Updated	6d 4h ago

RPKI

No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.

IRR

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

Route	Origin	Source	Description	Maintained by
183.172.0.0/14 covering	AS4538 ERX-CERNET-BKB	APNIC	CERNET	MAINT-CERNET-AP
183.172.0.0/14 covering	AS4538 ERX-CERNET-BKB	RADB	PACNET (proxy-registered route object)	MAINT-AS4637

Less specific

Announced prefixes that contain this one, most specific first.

More specific

14 announced prefixes fall inside this one.

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