Home Prefix Lookup2a12:cb40:100::/44

2a12:cb40:100::/44

🇯🇵

IPv6RIPEannouncedAS219065CYH-AS CHENGYUAN HE RPKI Valid

CIDR

2a12:cb40:100::/44

IP Version

IPv6

Addresses

19.3Y

Mask

/44

Country

🇯🇵 Japan

City

Kobe (Sumiyoshiyamate)

RIR

RIPE

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
2a12:cb40:100::/44	AS219065CYH-AS CHENGYUAN HE	Valid	RIPE	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	Registry	Maintainer	Modified
AS219065	RIPE	CYH-MNT	8/9/2026

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::/44" | jq

External Links