ResearchRouting table, looking glass, RPKI & IRR

145.79.172.0/22 British Telecommunications Limited

Announced by AS2856 British Telecommunications Limited. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 145.79.172.0/22

Prefix
145.79.172.0/22
Origin
AS2856 BT-UK-AS
RPKI
RPKI valid
Size
1,024 addresses
Less specific
none
More specifics
0
IRR route objects
20 exact, 0 covering
In RouteViews
2026-10-13 17:13 UTC
Paths

How 145.79.172.0/22 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 5400 2856
OriginAS2856 British Telecommunications Limited
Origin codeIGP
Communities174:21000 174:22013 36601:150 36601:174 36601:2001
Updated5d 16h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 5400 2856
OriginAS2856 British Telecommunications Limited
Origin codeIGP
Communities903:900 903:13760
Updated6d 0h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6461 2856
OriginAS2856 British Telecommunications Limited
Origin codeIGP
Communities6461:5997 36295:100 36295:6461
Updated6h 33m ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 5400 2856
OriginAS2856 British Telecommunications Limited
Origin codeIGP
Communitiesnone
Updated6d 0h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 5400 2856
OriginAS2856 British Telecommunications Limited
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated9d 17h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS2856 to originate 145.79.172.0/22 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
145.79.172.0/22/24AS812 ROGERS-COMMUNICATIONSRIPE
145.79.172.0/22/24AS2856 BT-UK-ASRIPE
145.79.172.0/22/24AS6079 RCN-ASRIPE
145.79.172.0/22/24AS7029 WINDSTREAMRIPE
145.79.172.0/22/24AS7843 TWC-7843-BBRIPE
145.79.172.0/22/24AS9304 HUTCHISON-AS-APRIPE
145.79.172.0/22/24AS11404 AS-WAVE-1RIPE
145.79.172.0/22/24AS20115 CHARTER-20115RIPE
145.79.172.0/22/24AS22773 ASN-CXA-ALL-CCI-22773-RDCRIPE
145.79.172.0/22/24AS399955 BRCRUDE-NETWORKRIPE
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
145.79.172.0/22AS812 ROGERS-COMMUNICATIONSRADBautogenMAINT-AS834
145.79.172.0/22AS2856 BT-UK-ASRADBautogenMAINT-AS834
145.79.172.0/22AS6079 RCN-ASRADBautogenMAINT-AS834
145.79.172.0/22AS7029 WINDSTREAMRADBautogenMAINT-AS834
145.79.172.0/22AS7843 TWC-7843-BBRADBautogenMAINT-AS834
145.79.172.0/22AS9304 HUTCHISON-AS-APRADBautogenMAINT-AS834
145.79.172.0/22AS11404 AS-WAVE-1RADBautogenMAINT-AS834
145.79.172.0/22AS20115 CHARTER-20115RADBautogenMAINT-AS834
145.79.172.0/22AS22773 ASN-CXA-ALL-CCI-22773-RDCRADBautogenMAINT-AS834
145.79.172.0/22AS399955 BRCRUDE-NETWORKRADBautogenMAINT-AS834
145.79.172.0/22AS812 ROGERS-COMMUNICATIONSRIPENNETUTILS-MNT
145.79.172.0/22AS2856 BT-UK-ASRIPENNETUTILS-MNT
145.79.172.0/22AS6079 RCN-ASRIPENNETUTILS-MNT
145.79.172.0/22AS7029 WINDSTREAMRIPENNETUTILS-MNT
145.79.172.0/22AS7843 TWC-7843-BBRIPENNETUTILS-MNT
145.79.172.0/22AS9304 HUTCHISON-AS-APRIPENNETUTILS-MNT
145.79.172.0/22AS11404 AS-WAVE-1RIPENNETUTILS-MNT
145.79.172.0/22AS20115 CHARTER-20115RIPENNETUTILS-MNT
145.79.172.0/22AS22773 ASN-CXA-ALL-CCI-22773-RDCRIPENNETUTILS-MNT
145.79.172.0/22AS399955 BRCRUDE-NETWORKRIPENNETUTILS-MNT
Tools

Check 145.79.172.0/22 live

Looking glassIP to ASN APIRPKI APIIRR API