Home Prefix Lookup219.105.80.0/21

219.105.80.0/21 - CTA JCOM (AS18136)

IPv4APNICannouncedAS18136CTA JCOM Co., Ltd. RPKI Valid

CIDR

219.105.80.0/21

IP Version

IPv4

Addresses

Mask

/21 (255.255.248.0)

Country

🇯🇵 Japan

City

Chiyoda City

RIR

APNIC

Status

announced

Allocated

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
219.105.80.0/21	AS18136 CTA JCOM Co., Ltd.	Valid	Other IRR	2026-10-11

Covering Prefix

1 less-specific announcement

Prefix	Origin AS	RPKI	IRR	Last Seen
219.105.80.0/20	AS18136 CTA JCOM Co., Ltd.	Valid	-	2026-10-11

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
219.105.80.0/20	AS9824	/24	apnic
219.105.80.0/20	AS18136	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS18136	Other IRR	MAINT-AS9824	2023-11-13

Origin ASN

AS18136

CTA JCOM Co., Ltd.

Related Prefixes

Covering prefix

219.105.80.0/20AS18136

More prefixes of AS18136

All prefixes of AS18136 →

Geolocation

Country🇯🇵JapanJP

RegionTokyo

CityChiyoda City

Coordinates35.6906, 139.7700 ↗

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/219.105.80.0/21

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

curl -s "https://api.ipctl.io/v1/prefix/219.105.80.0/21" | jq

External Links

RIPEstat