ResearchRouting table, looking glass, RPKI & IRR

77.77.128.0/18 GTT Communications Inc.

Announced by AS3257 GTT Communications Inc. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 77.77.128.0/18

Prefix
77.77.128.0/18
Origin
AS3257 GTT-BACKBONE
RPKI
RPKI valid
Size
16,384 addresses
Less specific
none
More specifics
16
IRR route objects
2 exact, 0 covering
In RouteViews
2026-10-12 20:02 UTC
Paths

How 77.77.128.0/18 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 3257
OriginAS3257 GTT Communications Inc.
Origin codeIGP
Communities174:21000 174:22013 36601:150 36601:174 36601:2001
Updated4d 20h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 3257
OriginAS3257 GTT Communications Inc.
Origin codeIGP
Communities903:900 903:13760
Updated5d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 1299 3257
OriginAS3257 GTT Communications Inc.
Origin codeIGP
Communities36295:100
Updated5d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 174 3257
OriginAS3257 GTT Communications Inc.
Origin codeIGP
Communities174:21000 174:22013
Updated5d 4h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 3257
OriginAS3257 GTT Communications Inc.
Origin codeIGP
Communities174:21000 174:22013 36295:100 36295:174
Updated8d 21h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS3257 to originate 77.77.128.0/18 up to /24. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
77.77.128.0/18/24AS3257 GTT-BACKBONERIPE
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
77.77.128.0/18AS3257 GTT-BACKBONERIPEGTTAS3257-ROUTE-MNT
77.77.128.0/18AS8390 TPN-ASRIPEInteroute / GTT EuropeBGGLOBALONE-MNT
More specific

Prefixes inside 77.77.128.0/18

16 announced prefixes fall inside this one.

Show the 16 prefixes
77.77.128.0/21 AS49849 MG2002-AS77.77.128.0/24 AS49849 MG2002-AS77.77.129.0/24 AS49849 MG2002-AS77.77.130.0/24 AS49849 MG2002-AS77.77.131.0/24 AS49849 MG2002-AS77.77.132.0/24 AS49849 MG2002-AS77.77.133.0/24 AS49849 MG2002-AS77.77.134.0/24 AS49849 MG2002-AS77.77.135.0/24 AS49849 MG2002-AS77.77.148.0/24 AS49699 ICN-BG77.77.149.0/24 AS49699 ICN-BG77.77.150.0/24 AS49699 ICN-BG77.77.151.0/24 AS49699 ICN-BG77.77.152.0/24 AS34074 IBS-BG-AS77.77.160.0/24 AS3257 GTT-BACKBONE77.77.163.0/24 AS47874 ICB-AS
Tools

Check 77.77.128.0/18 live

Looking glassIP to ASN APIRPKI APIIRR API