AS3424 — HFMT

AS3424 announces 2 IPv4 prefixes covering 512 addresses and 1 IPv6 prefixes.

About this network

HFMT stands for Honeywell Federal Manufacturing & Technologies, the contractor that manages and operates the Kansas City National Security Campus for the US Department of Energy's National Nuclear Security Administration (NNSA). The registration still carries the site's former name, the Kansas City Plant.

What it's used for

• Networking for an NNSA production site. The Kansas City campus manufactures the non-nuclear components of the US nuclear stockpile: electronics, mechanical assemblies, and engineered materials.
• A deliberately small announced footprint, in keeping with a secure government manufacturing facility rather than a public-facing network.

Notable

• This is US government address space operated under a management-and-operating contract, a common arrangement across the DOE complex where a private company runs a federally owned facility.
• Related DOE networking sits behind ESnet, the department's science network. See AS3425.

Interesting

• The site has been part of the nuclear weapons complex since 1949 and moved to a modern campus in the early 2010s, but its AS registration handle still reflects the operating contractor's initials rather than the facility name.

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

Announced prefixes

• 192.91.184.0/24
• 199.89.130.0/24
• 2620:8f:4022::/48

Upstream networks

• AS293 ESnet
• AS18712 Everfast Fiber Networks LLC

Adjacent networks

• AS293 ESnet
• AS18712 Everfast Fiber Networks LLC

Routing security

• RPKI: 0 valid, 0 invalid and 3 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 8 route objects.
• Listed in as-sets: AS-CCI-KS-CUST, AS-HURRICANE, AS-HURRICANEV6, AS-RR-BIZ, AS-TRANSROUTE-SPEC, AS-XO-B, AS293:AS-ESNET.