Home Prefix Lookup218.223.128.0/21

218.223.128.0/21 - GLBB JP GLBB Japan KK (AS55900)

IPv4APNICannouncedAS55900GLBB-JP GLBB Japan KK RPKI Valid

CIDR

218.223.128.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇯🇵 Japan

City

Ebara

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
218.223.128.0/21	AS55900 GLBB-JP GLBB Japan KK	Valid	Other IRR	2026-10-11

More-Specific Announcements

2 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
218.223.128.0/22	AS55900 GLBB-JP GLBB Japan KK	Valid	-	2026-10-11
218.223.132.0/22	AS55900 GLBB-JP GLBB Japan KK	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
218.223.128.0/21	AS55900	/21	apnic
218.223.128.0/18	AS59125	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS55900	Other IRR	MAINT-AS55900	2025-03-11

Origin ASN

AS55900

GLBB-JP GLBB Japan KK

Related Prefixes

More prefixes of AS55900

All prefixes of AS55900 →

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityEbara

Coordinates35.6130, 139.7030 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/218.223.128.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/218.223.128.0/21" | jq

External Links

RIPEstat