ResearchRouting table, looking glass, RPKI & IRR

163.131.32.0/19 Nagasaki Cable Media Inc.

Announced by AS10000 Nagasaki Cable Media Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 163.131.32.0/19

Prefix

Origin

RPKI

RPKI valid

Size

8,192 addresses

Less specific

none

More specifics

IRR route objects

2 exact, 2 covering

In RouteViews

2026-10-12 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.

AS36601 TNT (TNT - Tampa, FL)Collector-1-TAMPA-FL36601 174 2497 10000×3

AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 2516 10000×3

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 4766 7679×3 10000×4

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 2497 10000×3

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 2497 10000×3

RPKI

Covered by a ROA authorizing AS10000 to originate 163.131.32.0/19 up to /19. Validate another origin.

ROA prefix	Max length	Authorized origin	Trust anchor
163.131.32.0/19	/19	AS10000 NCM	APNIC

IRR

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

Route	Origin	Source	Description	Maintained by
163.131.32.0/19	AS10000 NCM	JPIRR	Nagasaki Cable Media Inc.	MAINT-AS2497
163.131.32.0/19	AS10000 NCM	RADB	Nagasaki Cable Media Inc.	MAINT-AS2497
163.131.0.0/16 covering	AS2497 IIJ	JPIRR	IIJ IPv4 BLOCK ( AS2497 )	MAINT-AS2497
163.131.0.0/16 covering	AS2497 IIJ	RADB	IIJ IPv4 BLOCK ( AS2497 )	MAINT-AS2497

Tools