Data as of Nov 10, 2026

158.4.0.0/17

No anonymizer space · no proxy exits in 30 days

Headquarters, USAISC · reallocated from United States Department of Defense (DoD)

Announcement

this exact prefix

No RPKI

Announced by

Type

Business

Risk

0 / 100 · Low

Announcements

Less specific

Prefix	Origin	Type	RPKI
158.0.0.0/13 since Dec 2010	AS721	Business

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
158.4.0.0/16	65,536	CARSON-NET1	United States Department of Defense (DoD) (USDDD) · US	Direct Allocation	Apr 13, 1992	disa.columbus.ns.mbx.hostmaster-dod-nic@mail.mil
└ 158.4.0.0/16	65,536	CARSON-NET1	Headquarters, USAISC (HEADQU-3) · US	Reallocated	Aug 25, 2025	disa.columbus.ns.mbx.arin-registrations@mail.mil

Routing timeline

Summary

Recorded history