ResearchRouting table, looking glass, RPKI & IRR

133.131.0.0/16 Nippon Telegraph and Telephone East Corporation

Announced by AS63802 Nippon Telegraph and Telephone East Corporation. RPKI not found Seen by 5 of our 5 looking glass sessions.

Summary

What the table says about 133.131.0.0/16

Prefix
133.131.0.0/16
Origin
AS63802 MIKAKA-EAST
RPKI
RPKI not found
Size
65,536 addresses
Less specific
none
More specifics
15
IRR route objects
1 exact, 0 covering
In RouteViews
2026-10-12 04:03 UTC
Paths

How 133.131.0.0/16 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 174 2497 150363 63802
OriginAS63802 Nippon Telegraph and Telephone East Corporation
Origin codeIGP
Communities174:21001 174:22013 36601:150 36601:174 36601:2001
Updated4d 4h ago
AS903 UNIFIED-COMMUNICATIONS-TECHNOLOGIES (UCT - Valdosta, GA)Collector-2-COCOA-FL903 13760 3356 2497 150363 63802
OriginAS63802 Nippon Telegraph and Telephone East Corporation
Origin codeIGP
Communities903:900 903:13760
Updated4d 12h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Cocoa, FL)Collector-2-COCOA-FL36295 6939 63802
OriginAS63802 Nippon Telegraph and Telephone East Corporation
Origin codeIGP
Communities36295:100
Updated4d 12h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Jacksonville, FL)Collector-2-COCOA-FL36295 6939 63802
OriginAS63802 Nippon Telegraph and Telephone East Corporation
Origin codeIGP
Communitiesnone
Updated4d 12h ago
AS36295 FLORIDA-HIGH-SPEED-INTERNET (FLHSI - Orlando, FL)Collector-2-COCOA-FL36295 174 2497 150363 63802
OriginAS63802 Nippon Telegraph and Telephone East Corporation
Origin codeIGP
Communities174:21001 174:22013 36295:100 36295:174
Updated8d 5h ago
RPKI

Route origin authorizations

No ROA covers this prefix, so RPKI has nothing to say about who may originate it. Validate another origin.

IRR

Route objects

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

RouteOriginSourceDescriptionMaintained by
133.131.0.0/16AS63802 MIKAKA-EASTJPIRRNTT East Special Route X-Keiro:thinnw.jpirr-alert@mail1.softether.co.jpMAINT-AS150363
More specific

Prefixes inside 133.131.0.0/16

15 announced prefixes fall inside this one.

Show the 15 prefixes
133.131.6.0/24 AS63802 MIKAKA-EAST133.131.7.0/24 AS63802 MIKAKA-EAST133.131.8.0/24 AS63802 MIKAKA-EAST133.131.9.0/24 AS63802 MIKAKA-EAST133.131.10.0/24 AS63802 MIKAKA-EAST133.131.11.0/24 AS63802 MIKAKA-EAST133.131.12.0/24 AS63802 MIKAKA-EAST133.131.13.0/24 AS63802 MIKAKA-EAST133.131.14.0/24 AS63802 MIKAKA-EAST133.131.15.0/24 AS63802 MIKAKA-EAST133.131.16.0/24 AS63802 MIKAKA-EAST133.131.17.0/24 AS63802 MIKAKA-EAST133.131.18.0/24 AS63802 MIKAKA-EAST133.131.19.0/24 AS63802 MIKAKA-EAST133.131.20.0/24 AS63802 MIKAKA-EAST
Tools

Check 133.131.0.0/16 live

Looking glassIP to ASN APIRPKI APIIRR API