ResearchRouting table, looking glass, RPKI & IRR

203.238.221.0/24 POSCO DX

Announced by AS18305 POSCO DX. RPKI not found Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 203.238.221.0/24

Prefix

Origin

AS18305 POSNET-KR

RPKI

RPKI not found

Size

256 addresses

Less specific

More specifics

IRR route objects

1 exact, 4 covering

In RouteViews

2026-10-15 16:02 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 4766 18305×7

AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 7029 4766 18305×7

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 9318 18305×6

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 4766 18305×7

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 4766 18305×7

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
203.238.221.0/24	AS18305 POSNET-KR	RADB	POSNET	MAINT-AS9318
203.238.220.0/22 covering	AS18302 SKG_NW-AS-KR-KR	NTTCOM	SKNETWORKS	MAINT-SKNETWORKS
203.238.220.0/22 covering	AS18305 POSNET-KR	RADB	POSDATA	MAINT-AS4766
203.238.220.0/22 covering	AS9318 SKB-AS-KR	REACH	REACH (Customer Route)	MAINT-REACH-NOC
203.238.208.0/20 covering	AS3786 LGDACOM-KR	RADB	contact noc@bora.net if necessary	MAINT-AS3786

Less specific

Announced prefixes that contain this one, most specific first.

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