Home Prefix Lookup203.253.236.0/24

203.253.236.0/24 - KREONET KR KISTI (AS1237)

IPv4APNICallocatedAS1237KREONET-AS-KR KISTI RPKI Valid

CIDR

203.253.236.0/24

IP Version

IPv4

Addresses

256

Mask

/24 (255.255.255.0)

Country

🇰🇷 South Korea

City

Naju (Jinheung-gil)

RIR

APNIC

Status

allocated

Allocated

1996-09-29

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

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Prefix	Origin AS	RPKI	IRR	Last Seen
203.253.236.0/24	AS1237 KREONET-AS-KR KISTI	Valid	APNIC	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.253.236.0/24	AS1237	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS1237	APNIC	MNT-KRNIC-AP	2025-06-09

Origin ASN

AS1237

KREONET-AS-KR KISTI

Related Prefixes

More prefixes of AS1237

All prefixes of AS1237 →

Geolocation

Country🇰🇷South KoreaKR

RegionJeollanam-do

CityNaju (Jinheung-gil)

Coordinates35.0185, 126.7950 ↗

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/203.253.236.0/24

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

curl -s "https://api.ipctl.io/v1/prefix/203.253.236.0/24" | jq

External Links

RIPEstat