Autonomous system
AS3923 FAA-MMAC
Unclassified ARIN
Summary
FAA Mike Monroney Aeronautical Center
government legacy
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. 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.
Transit providers
1 upstream, 1 downstream and 3 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS5078 | Oklahoma Network for Education Enrichment and | 323 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 67.84K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 5 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS3923- Registry name
- FAA-MMAC
- Registrant
- Federal Aviation Administration
- Abuse contact
- 9-AIT-ARIN-Abuse@faa.gov
- Registered
- 1994-10-12
- Last changed
- 2023-09-22
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 6 with no ROA
- ROAs
- 0 authorising AS3923
- ASPA
- no ASPA record
- IRR
- 100% registered · 6 of 6 announcements
- Route objects
- 6 naming AS3923
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: 442 networks and 1,783 prefixes, as published 2026-10-20. 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