AS5831 — DNIC-ASBLK-05800-06055

AS5831 announces 9 IPv4 prefixes covering 130,816 addresses and 0 IPv6 prefixes.

About this network

AS5831 is a US Department of Defense network, registered as part of the block DNIC-ASBLK-05800-06055 held by the DoD Network Information Center (DNIC).

What it's used for

• US government / military networking. The block registration is generic and does not name a specific base, command or unit.

Notable

• An IP here belongs to a government / military network, not a commercial ISP or hosting provider.
• It announces two full legacy /16s (140.47.0.0 and 140.48.0.0) plus a single /24, about 130,000 addresses in all, with almost no deaggregation.
• Part of a large contiguous run of DoD-held ASNs (5800–6055), allocated to the DNIC as a block rather than one at a time.

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

Announced prefixes

• 140.47.0.0/16
• 140.48.0.0/18
• 140.48.64.0/19
• 140.48.98.0/23
• 140.48.100.0/22
• 140.48.104.0/21
• 140.48.112.0/20
• 140.48.128.0/17
• 214.3.138.0/24

Upstream networks

• AS27064 United States Department of Defense (DoD)

Adjacent networks

• AS27064 United States Department of Defense (DoD)

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 0% of announcements registered; 0 route objects.