AS3424 HFMT

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](https://asn.ipinfo.app/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.