ResearchRouting table, looking glass, RPKI & IRR

37.221.91.0/24 Cloud4com s.r.o.

Announced by AS201730 Cloud4com s.r.o. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 37.221.91.0/24

Prefix

Origin

AS201730 DataSpring

RPKI

RPKI valid

Size

256 addresses

Less specific

More specifics

IRR route objects

1 exact, 2 covering

In RouteViews

2026-10-13 16:03 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 1273 16019 201730

AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 1273 16019 201730

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 201730

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 201730

AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 1273 16019 201730

RPKI

Covered by a ROA authorizing AS201730 to originate 37.221.91.0/24 up to /24. Validate another origin.

ROA prefix	Max length	Authorized origin	Trust anchor
37.221.91.0/24	/24	AS201730 DataSpring	RIPE
37.221.88.0/22	/24	AS201730 DataSpring	RIPE

IRR

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

Route	Origin	Source	Description	Maintained by
37.221.91.0/24	AS201730 DataSpring	RIPE	DataSpring DDoS protection test	DASP-MNT
37.221.90.0/23 covering	AS201730 DataSpring	RIPE	N	MNT-ICT
37.221.88.0/22 covering	AS201730 DataSpring	RIPE	DataSpring DDoS protection test	MNT-ICT

Less specific

Announced prefixes that contain this one, most specific first.

Tools