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Data as of Nov 3, 2026

158.205.0.0/16

No anonymizer space · no proxy exits in 30 days

IDC Frontier Inc. · space held by Japan Network Information Center

Announcement

this exact prefix

RPKI valid

Announced by

Type

Hosting

Announcements

More specific

Announcements inside

Prefix	Origin	Type	Holder	RPKI
158.205.121.0/24 since Oct 2011	AS4694	Hosting	Japan Network Information Center
158.205.198.0/24 since Jun 2025	AS4694	Hosting	Japan Network Information Center
158.205.216.0/21 since Dec 2019	AS4694	Hosting	Japan Network Information Center
158.205.229.0/24 since Jun 2025	AS4694	Hosting	Japan Network Information Center
158.205.238.0/23 since Mar 2024	AS4694	Hosting	Japan Network Information Center
158.205.238.0/24 since Mar 2024	AS4694	Hosting	Japan Network Information Center

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS4694

JP

Name: IDC Frontier Inc.
Type: Hosting
Registered: Aug 30, 1995
Domain: idcf.jp
Website: www.idcf.jp/english/
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
158.205.0.0/16	AS4694	/32	APNIC	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS4694	RADB	IDC Frontier Inc.	IDC	Sep 27, 2024
AS4694	JPIRR	IDC Frontier Inc.	IDC	Aug 27, 2026

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
158.205.0.0/24	AS4694	RADB	PACNET (proxy-registered route object)	MAINT-AS4637	Nov 13, 2023
158.205.237.0/24	AS4694	RADB	IDC Frontier Inc.	IDC	Sep 27, 2024
158.205.237.0/24	AS4694	JPIRR	IDC Frontier Inc.	IDC	Aug 27, 2026