133.69.0.0/16

🇯🇵

CIDR

133.69.0.0/16

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:

Prefix	Origin AS	RPKI	IRR	Last Seen
133.69.0.0/16	AS2523ITRC-NET - Internet Technology Research Consortium	No ROA	—	5/31/2026

7 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
133.69.0.0/20	AS2523ITRC-NET - Internet Technology Research Consortium	No ROA	—	5/31/2026
133.69.192.0/20	AS2523ITRC-NET - Internet Technology Research Consortium	No ROA	—	5/31/2026
133.69.168.0/22	AS45688UT-NSRG - The University of Tokyo Interfaculty Initiative in Information Studies	No ROA	—	5/31/2026
133.69.172.0/22	AS45688UT-NSRG - The University of Tokyo Interfaculty Initiative in Information Studies	No ROA	—	5/31/2026
133.69.160.0/22	AS45688UT-NSRG - The University of Tokyo Interfaculty Initiative in Information Studies	No ROA	—	5/31/2026
133.69.176.0/24	AS45688UT-NSRG - The University of Tokyo Interfaculty Initiative in Information Studies	No ROA	—	5/31/2026
133.69.184.0/24	AS45688UT-NSRG - The University of Tokyo Interfaculty Initiative in Information Studies	No ROA	—	5/31/2026

Origin ASN

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityChiyoda City

API

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

curl -s "https://api.ipctl.io/v1/prefix/133.69.0.0/16" | jq

External Links