Autonomous system
AS4046 FAA
Unclassified ARIN
Summary
Federal Aviation Administration (FAA)
government legacy
FAA is the autonomous system of the United States Federal Aviation Administration, the agency of the Department of Transportation that regulates civil aviation and runs the national air traffic control system.
What it's used for
- Agency networking: FAA facilities, administrative systems, and the agency's internet-facing services.
- The address space is government institutional space, serving FAA staff, sites, and systems rather than any commercial customer base.
Notable
- The FAA holds a full legacy
/16(155.178.0.0/16) announced from this ASN, a size handed out in the era when federal agencies took direct allocations. - The ARIN autnum registration dates to 1994, consistent with an agency that was connected in the internet's early institutional phase.
Interesting
- Safety-critical air traffic systems run on dedicated operational networks rather than the public internet, so a government ASN like this reflects the agency's enterprise and public-facing IT, not the radar and comms backbone itself.
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 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 20 prefixes · 67.58K addresses IPv6 19 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 39 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4046- Registry name
- FAA
- Registrant
- Federal Aviation Administration
- Abuse contact
- 9-AIT-ARIN-Abuse@faa.gov
- Registered
- 1994-11-17
- Last changed
- 2023-09-22
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 18 with no ROA
- ROAs
- 0 authorising AS4046
- ASPA
- no ASPA record
- IRR
- 50% registered · 9 of 18 announcements 2 other origin
- Route objects
- 7 naming AS4046
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 1,778 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