AS5839 — DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD)

AS5839 announces 37 IPv4 prefixes covering 80,640 addresses and 0 IPv6 prefixes.

About this network

AS5839 is a US Department of Defense network from the block DNIC-ASBLK-05800-06055, registered to the DoD Network Information Center (DNIC).

What it's used for

• US government / military network operations. The generic DNIC registration does not identify the particular site or command behind this ASN.

Notable

• Government / military space, not a commercial ISP or host.
• Around 75,000 addresses announced across roughly 50 prefixes, mostly in the 205.x ranges. The many small prefixes suggest a number of separate sites routed under one AS.
• Sits inside a contiguous block of DoD ASNs (5800–6055) handed to the DNIC at once, which is why so many neighbouring numbers share the same registration.

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

Announced prefixes

• 138.180.197.0/24
• 138.180.198.0/24
• 205.56.55.0/24
• 205.56.56.0/24
• 205.56.58.0/23
• 205.56.246.0/23
• 205.56.248.0/22
• 205.56.252.0/23
• 205.61.0.0/22
• 205.61.4.0/24
• 205.61.16.0/24
• 205.61.24.0/21
• 205.61.32.0/21
• 205.61.44.0/23
• 205.61.48.0/24
• 205.67.0.0/19
• 205.68.192.0/19
• 205.69.16.0/20
• 205.69.237.0/24
• 205.71.96.0/22
• 205.71.101.0/24
• 205.71.105.0/24
• 205.71.106.0/23
• 205.71.108.0/22
• 205.71.112.0/20
• 205.72.192.0/20
• 205.73.96.0/20
• 205.75.128.0/20
• 205.76.128.0/19
• 205.88.224.0/20
• 205.89.96.0/20
• 205.91.32.0/20
• 205.91.224.0/20
• 205.92.16.0/20
• 205.113.10.0/23
• 205.113.12.0/22
• 205.113.16.0/24

Upstream networks

• AS27065 United States Department of Defense (DoD)

Adjacent networks

• AS27065 United States Department of Defense (DoD)

Routing security

• RPKI: 0 valid, 0 invalid and 49 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.
• Listed in as-sets: AS-DATACOM.