ResearchRouting table, looking glass, RPKI & IRR

81.163.200.0/21 ITB Sp. z o.o.

Announced by AS59782 ITB Sp. z o.o. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 81.163.200.0/21

Prefix
81.163.200.0/21
Origin
AS59782 InterBlock-ASN
RPKI
RPKI valid
Size
2,048 addresses
Less specific
none
More specifics
8
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-16 12:01 UTC
Paths

How 81.163.200.0/21 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 174 59782×5
OriginAS59782 ITB Sp. z o.o.
Origin codeIGP
Communities174:21101 174:22028 36601:150 36601:174 36601:2001
Updated8d 10h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 174×4 59782×5
OriginAS59782 ITB Sp. z o.o.
Origin codeIGP
Communities903:900 903:13760
Updated5d 14h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 201054 59782
OriginAS59782 ITB Sp. z o.o.
Origin codeIGP
Communities36295:100
Updated1d 20h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 201054 59782
OriginAS59782 ITB Sp. z o.o.
Origin codeIGP
Communitiesnone
Updated1d 20h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 59782×5
OriginAS59782 ITB Sp. z o.o.
Origin codeIGP
Communities174:21101 174:22028 36295:100 36295:174
Updated12d 11h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS59782 to originate 81.163.200.0/21 up to /21. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
81.163.200.0/21/21AS59782 InterBlock-ASNRIPE
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
81.163.200.0/21AS59782 InterBlock-ASNRIPEITB Sp. z o.o.MNT-INTERBLOCK
More specific

Prefixes inside 81.163.200.0/21

8 announced prefixes fall inside this one.

Show the 8 prefixes
81.163.200.0/24 AS59782 InterBlock-ASN81.163.201.0/24 AS59782 InterBlock-ASN81.163.202.0/24 AS59782 InterBlock-ASN81.163.203.0/24 AS59782 InterBlock-ASN81.163.204.0/24 AS59782 InterBlock-ASN81.163.205.0/24 AS59782 InterBlock-ASN81.163.206.0/24 AS59782 InterBlock-ASN81.163.207.0/24 AS59782 InterBlock-ASN
Tools

Check 81.163.200.0/21 live

Looking glassIP to ASN APIRPKI APIIRR API