ResearchRouting table, looking glass, RPKI & IRR

140.241.0.0/16 City of Boston

Announced by AS27370 City of Boston. RPKI valid Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 140.241.0.0/16

Prefix
140.241.0.0/16
Origin
AS27370 CITYOFBOSTON
RPKI
RPKI valid
Size
65,536 addresses
Less specific
none
More specifics
6
IRR route objects
4 exact, 0 covering
In RouteViews
2026-10-13 12:02 UTC
Paths

How 140.241.0.0/16 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 6939 54004 27370
OriginAS27370 City of Boston
Origin codeIGP
Communities13760:3002 36601:150 36601:2001 36601:13760
Updated5d 11h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 6939 54004 27370
OriginAS27370 City of Boston
Origin codeIGP
Communities903:900 903:13760
Updated5d 20h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 54004 27370
OriginAS27370 City of Boston
Origin codeIGP
Communities36295:100
Updated5d 20h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 54004 27370
OriginAS27370 City of Boston
Origin codeIGP
Communitiesnone
Updated5d 20h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 6128×2 54004 27370
OriginAS27370 City of Boston
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated9d 13h ago
RPKI

Route origin authorizations

Covered by a ROA authorizing AS27370 to originate 140.241.0.0/16 up to /16. Validate another origin.

ROA prefixMax lengthAuthorized originTrust anchor
140.241.0.0/16/16AS27370 CITYOFBOSTONARIN
IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
140.241.0.0/16AS27370 CITYOFBOSTONALTDBProxy-registered route objectMAINT-TOWARDEX
140.241.0.0/16AS1784 GCFA-ASN02LEVEL3AS1784-CUSTBROADVOICE-MNT
140.241.0.0/16AS27370 CITYOFBOSTONLEVEL3cus prefixMAINT-TOWARDEX
140.241.0.0/16AS27370 CITYOFBOSTONRADBAS21755-cust city of BostonMAINT-AS27506
More specific

Prefixes inside 140.241.0.0/16

6 announced prefixes fall inside this one.

Show the 6 prefixes
140.241.3.0/24 AS27370 CITYOFBOSTON140.241.14.0/24 AS27370 CITYOFBOSTON140.241.25.0/24 AS27370 CITYOFBOSTON140.241.86.0/24 AS27370 CITYOFBOSTON140.241.244.0/24 AS27370 CITYOFBOSTON140.241.250.0/24 AS27370 CITYOFBOSTON
Tools

Check 140.241.0.0/16 live

Looking glassIP to ASN APIRPKI APIIRR API