AS321 — DNIC-ASBLK-00306-00371
AS321 announces 4 IPv4 prefixes covering 66,560 addresses and 1 IPv6 prefixes.
About this network
An early US Department of Defense allocation from the block DNIC-ASBLK-00306-00371, registered to the DoD Network Information Center (DNIC).
What it's used for
- US government / military network operations. The specific site or unit is not publicly identified in the block registration.
Notable
- A government / DoD network, not a commercial ISP or host. It sits in a contiguous block of low-numbered ASNs (00306–00371) held by the DoD Network Information Center from the internet's earliest years.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 55.24.0.0/16
- 139.241.3.0/24
- 139.241.58.0/23
- 139.241.86.0/24
- 2608:14a:3100::/40
Upstream networks
- AS306 United States Department of Defense (DoD)
- AS27066 United States Department of Defense (DoD)
- AS27064 United States Department of Defense (DoD)
- AS27065 United States Department of Defense (DoD)
Adjacent networks
BGP / ASN / CIDR
awaiting query
enter an AS number, IP address, or organisation name above
IPv4
resolving...
IPv6
resolving...
Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED