Autonomous system
AS3424 HFMT
Unclassified ARIN
Summary
NNSA Kansas City National Security Campus (Honeywell FM&T)
government research legacy
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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 3 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3424- Registry name
- HFMT
- Registrant
- National Nuclear Security Administration, Kansas City Plant
- Abuse contact
- networking@kcnsc.doe.gov
- Registered
- 1994-02-18
- Last changed
- 2024-12-04
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS3424
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 8 naming AS3424
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 443 networks and 1,779 prefixes, as published 2026-10-24. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere