AS153 — CTNOSC-ASN-153 - Headquarters, USAISC

AS153 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

A US Army network (CTNOSC-ASN-153), tied to Army theater network operations and registered through the Army's information-systems command.

What it's used for

• US government / military networking for Army network operations.

Notable

• A US DoD / Army allocation, not a commercial ISP or host. The low AS number marks it as an early-internet allocation to the federal government.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 158.9.16.0/24
• 207.133.194.0/24

Upstream networks

• AS1540 Headquarters, USAISC

Adjacent networks

• AS1540 Headquarters, USAISC

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.