Home Prefix Lookup203.112.0.0/19

203.112.0.0/19 - ASAHI NET Asahi Net (AS4685)

IPv4APNICallocatedAS4685ASAHI-NET Asahi Net RPKI Valid

CIDR

203.112.0.0/19

IP Version

IPv4

Addresses

8.1K

Mask

/19 (255.255.224.0)

Country

🇯🇵 Japan

City

Chiyoda City

RIR

APNIC

Status

allocated

Allocated

2010-04-29

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.112.0.0/19	AS4685 ASAHI-NET Asahi Net	Valid	Other IRR	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.112.0.0/19	AS4685	/19	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS4685	Other IRR	MAINT-AS4685	2026-09-29

Transfer History

Registry transfers of 203.112.0.0/19, blocks inside it, or blocks containing it.

203.112.0.0/19Transfer · 2023-03-13
Japan Network Information Center/Vectant
🇯🇵 JP APNIC
→
Japan Network Information Center/asahi-net
🇯🇵 JP APNIC

Date	Resource	From	To	Type
2023-03-13	203.112.0.0/19	Japan Network Information Center/Vectant 🇯🇵 JP APNIC	Japan Network Information Center/asahi-net 🇯🇵 JP APNIC	Transfer

Origin ASN

AS4685

ASAHI-NET Asahi Net

Related Prefixes

More prefixes of AS4685

All prefixes of AS4685 →

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityChiyoda City

Coordinates35.6916, 139.7680 ↗

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/203.112.0.0/19

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

curl -s "https://api.ipctl.io/v1/prefix/203.112.0.0/19" | jq

External Links

RIPEstat