AS1590 — DNIC-ASBLK-01550-01601

AS1590 announces 25 IPv4 prefixes covering 34,304 addresses and 0 IPv6 prefixes.

About this network

An early US Department of Defense allocation from the block DNIC-ASBLK-01550-01601, registered to the DoD Network Information Center (DNIC).

What it's used for

• US government / military network operations. The generic DNIC block registration doesn't name a specific base or unit.

Notable

• A government / DoD network, not a commercial ISP or host. It sits in a contiguous block of low-numbered ASNs (01550–01601) held by the DoD Network Information Center.
• The low AS number reflects an allocation from the internet's earliest years, handed out roughly sequentially.

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

Announced prefixes

• 55.209.203.0/24
• 143.69.7.0/24
• 143.69.216.0/21
• 143.69.232.0/22
• 143.84.75.0/24
• 143.84.160.0/24
• 143.84.225.0/24
• 146.55.24.0/21
• 147.248.0.0/20
• 150.149.64.0/19
• 155.19.8.0/22
• 155.19.56.0/21
• 155.29.176.0/20
• 155.152.164.0/22
• 155.152.221.0/24
• 155.152.223.0/24
• 155.213.20.0/23
• 155.213.52.0/22
• 155.213.216.0/21
• 158.13.136.0/21
• 192.83.203.0/24
• 199.10.61.0/24
• 199.123.76.0/24
• 206.37.238.0/24
• 214.3.88.0/24

Upstream networks

• AS27064 United States Department of Defense (DoD)

Adjacent networks

• AS27064 United States Department of Defense (DoD)