HomePrefix Lookup133.131.0.0/16

133.131.0.0/16

🇯🇵
IPv4APNICannouncedAS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA
CIDR
133.131.0.0/16
IP Version
IPv4
Addresses
65.5K
Mask
/16 (255.255.0.0)
Country
🇯🇵 Japan
City
Chiyoda City
RIR
APNIC
Status
announced
Allocated
-

Announced BGP Routes

1 of 1 route
RPKI:
IRR:
PrefixOrigin ASRPKIIRRLast Seen
133.131.0.0/16AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026

Covering Prefix

15 less-specific announcements
PrefixOrigin ASRPKIIRRLast Seen
133.131.6.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.7.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.8.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.9.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.10.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.11.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.12.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.13.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.14.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.15.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.16.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.17.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.18.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.19.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
133.131.20.0/24AS63802MIKAKA-EAST - Nippon Telegraph and Telephone East CorporationNo ROA—5/30/2026
Origin ASN
AS63802
MIKAKA-EAST - Nippon Telegraph and Telephone East Corporation
Geolocation
Country🇯🇵JapanJP
RegionTokyo
CityChiyoda City
Coordinates35.6940, 139.7540 ↗
API
Open
GEThttps://api.ipctl.io/v1/prefix/133.131.0.0/16

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/133.131.0.0/16" | jq
External Links
RIPEstat Hurricane Electric BGP