Home Prefix Lookup203.23.200.0/22

203.23.200.0/22 - GLBB JP GLBB Japan KK (AS55900)

IPv4APNICallocatedAS55900GLBB-JP GLBB Japan KK RPKI Valid

CIDR

203.23.200.0/22

IP Version

IPv4

Addresses

Mask

/22 (255.255.252.0)

Country

🇯🇵 Japan

City

Chatan (Hamagawa)

RIR

APNIC

Status

allocated

Allocated

1996-02-06

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
203.23.200.0/22	AS55900 GLBB-JP GLBB Japan KK	Valid	Other IRR	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.23.200.0/22	AS55900	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS55900	Other IRR	MAINT-AS55900	2023-11-13

Transfer History

Registry transfers of 203.23.200.0/22, blocks inside it, or blocks containing it.

203.23.200.0/22Transfer · 2020-09-18
MAZZON SYSTEMS ENGINEERING (AUSTRALIA) PTY. LTD.
🇦🇺 AU APNIC
→
Japan Network Information Center/GLBBADM
🇯🇵 JP APNIC

Date	Resource	From	To	Type
2020-09-18	203.23.200.0/22	MAZZON SYSTEMS ENGINEERING (AUSTRALIA) PTY. LTD. 🇦🇺 AU APNIC	Japan Network Information Center/GLBBADM 🇯🇵 JP APNIC	Transfer

Origin ASN

AS55900

GLBB-JP GLBB Japan KK

Related Prefixes

More prefixes of AS55900

All prefixes of AS55900 →

Geolocation

Country🇯🇵JapanJP

RegionOkinawa

CityChatan (Hamagawa)

Coordinates26.3295, 127.7520 ↗

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/203.23.200.0/22

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

curl -s "https://api.ipctl.io/v1/prefix/203.23.200.0/22" | jq

External Links

RIPEstat