57.72.128.0/18

🇯🇵

CIDR

57.72.128.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇯🇵 Japan

City

Shibuya City

RIR

RIPE

Status

assigned

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Prefix	Origin AS	RPKI	IRR	Last Seen
57.72.128.0/18	AS51964ORANGE-BUSINESS-SERVICES-IPSN-ASN ORANGE BUSINESS SERVICES U.S. Inc.	Valid	RADBRIPE	6/1/2026

3 less-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
57.72.0.0/15	AS51964ORANGE-BUSINESS-SERVICES-IPSN-ASN ORANGE BUSINESS SERVICES U.S. Inc.	Valid	—	6/1/2026
57.72.128.0/17	AS51964ORANGE-BUSINESS-SERVICES-IPSN-ASN ORANGE BUSINESS SERVICES U.S. Inc.	Valid	—	6/1/2026
57.72.160.0/24	AS51964ORANGE-BUSINESS-SERVICES-IPSN-ASN ORANGE BUSINESS SERVICES U.S. Inc.	Valid	—	6/1/2026

Prefix	Origin	Max Length	Trust Anchor
57.72.0.0/15	AS4862	/32	ripe
57.72.0.0/15	AS51964	/32	ripe

Origin	Registry	Maintainer	Modified
AS51964	RADB	MAINT-AS5583	11/13/2023
AS51964	RIPE	OBS2016-MNT	12/10/2020

Origin ASN

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityShibuya City

Abuse Contact

API

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

curl -s "https://api.ipctl.io/v1/prefix/57.72.128.0/18" | jq

External Links