AS3923 — FAA-MMAC

AS3923 announces 3 IPv4 prefixes covering 67,840 addresses and 2 IPv6 prefixes.

About this network

FAA-MMAC belongs to the United States Federal Aviation Administration, specifically its Mike Monroney Aeronautical Center in Oklahoma City — the FAA's main training, logistics, and technical-support campus.

What it's used for

• Federal government networking for the FAA: the agency's staff, administrative systems, and the support functions run out of the Aeronautical Center.

Notable

• A large civilian-government allocation, on the order of a /16 worth of addresses — sized for an agency, not an office.
• Registered with ARIN in 1994. Federal agencies were among the earliest holders of their own AS numbers, and the FAA's routing predates most commercial ISPs.

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

Announced prefixes

• 152.123.8.0/21
• 152.123.16.0/24
• 162.58.0.0/16
• 2001:19e8:8041::/48
• 2606:7ec0:1903::/48

Upstream networks

• AS5078 Oklahoma Network for Education Enrichment and

Downstream networks

• AS4046 Federal Aviation Administration

Adjacent networks

• AS5078 Oklahoma Network for Education Enrichment and
• AS4046 Federal Aviation Administration