Home Prefix Lookup203.129.112.0/20

203.129.112.0/20 - CTCX Chubu Telecommunications Company (AS18126)

IPv4APNICallocatedAS18126CTCX Chubu Telecommunications Company, Inc. RPKI Valid

CIDR

203.129.112.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇯🇵 Japan

City

Nagoya

RIR

APNIC

Status

allocated

Allocated

2007-01-23

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
203.129.112.0/20	AS18126 CTCX Chubu Telecommunications Company, Inc.	Valid	Other IRR	2026-10-11

More-Specific Announcements

1 more-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
203.129.127.0/24	AS18126 CTCX Chubu Telecommunications Company, Inc.	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.129.112.0/20	AS18126	/24	apnic
203.129.112.0/20	AS19905	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS18126	Other IRR	MAINT-AS18126	2023-11-13

Origin ASN

AS18126

CTCX Chubu Telecommunications Company, Inc.

Related Prefixes

More prefixes of AS18126

All prefixes of AS18126 →

Geolocation

Country🇯🇵JapanJP

RegionAichi

CityNagoya

Coordinates35.1674, 136.9000 ↗

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/203.129.112.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/203.129.112.0/20" | jq

External Links

RIPEstat