Home Prefix Lookup2a12:cb40:100::/40

2a12:cb40:100::/40

🇯🇵

CIDR

2a12:cb40:100::/40

IP Version

IPv6

Addresses

309.4Y

Mask

/40

Country

🇯🇵 Japan

City

Kobe (Sumiyoshiyamate)

RIR

RIPE

Status

assigned

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not currently announced in BGP. See covering prefix below.

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
2a12:cb40:100::/44	AS219065CYH-AS CHENGYUAN HE	Valid	—	9/11/2026

Prefix	Origin	Max Length	Trust Anchor
2a12:cb40::/29	AS10977	/48	ripe
2a12:cb40::/29	AS25085	/48	ripe
2a12:cb40::/29	AS199605	/48	ripe
2a12:cb40::/29	AS209565	/48	ripe
2a12:cb40::/29	AS215172	/48	ripe
2a12:cb40::/29	AS219065	/48	ripe

Origin ASN

Geolocation

Country🇯🇵JapanJP

RegionHyōgo

CityKobe (Sumiyoshiyamate)

Abuse Contact

API

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

curl -s "https://api.ipctl.io/v1/prefix/2a12:cb40:100::/40" | jq

External Links