ResearchRouting table, looking glass, RPKI & IRR

37.157.4.0/23 Adform A/S

Announced by AS198622 Adform A/S. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 37.157.4.0/23

Prefix
37.157.4.0/23
Origin
AS198622 ADFORM
RPKI
RPKI valid
Size
512 addresses
Less specific
37.157.0.0/21 AS198622 ADFORM
More specifics
1
IRR route objects
2 exact, 1 covering
In RouteViews
2026-10-13 17:13 UTC
Paths

How 37.157.4.0/23 is reached

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 13760 3356 31027 198622
OriginAS198622 Adform A/S
Origin codeIGP
Communities3356:2 3356:22 3356:100 3356:123 3356:510 3356:901 3356:2091 31027:3000 31027:64208 31027:65030 31027:65031 36601:150 36601:2001 36601:13760 65001:714 65001:2906 65001:3292 65001:3320 65001:20940 65001:32590
Updated5d 16h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 31027 198622
OriginAS198622 Adform A/S
Origin codeIGP
Communities903:900 903:13760
Updated6d 1h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 31027 198622
OriginAS198622 Adform A/S
Origin codeIGP
Communities36295:100
Updated6d 0h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 31027 198622
OriginAS198622 Adform A/S
Origin codeIGP
Communitiesnone
Updated6d 1h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 1299 31027 198622
OriginAS198622 Adform A/S
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated6d 18h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS198622 to originate 37.157.0.0/21 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
37.157.0.0/21/24AS47292 SENTIARIPE
37.157.0.0/21/24AS198622 ADFORMRIPE
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
37.157.4.0/23AS47292 SENTIARIPEAdform DTC IPv4 NetworkADFORM
37.157.4.0/23AS198622 ADFORMRIPEAdform DTC IPv4 NetworkADFORM
37.157.0.0/21 coveringAS198622 ADFORMRIPEADFORM-NETADFORM
Less specific

Covering prefixes

Announced prefixes that contain this one, most specific first.

37.157.0.0/21 AS198622 ADFORM
More specific

Prefixes inside 37.157.4.0/23

1 announced prefix fall inside this one.

Show the 1 prefixes
37.157.4.0/24 AS198622 ADFORM
Tools

Check 37.157.4.0/23 live

Looking glassIP to ASN APIRPKI APIIRR API