USAS24
Operated by National Aeronautics and Space Administration (NASA), US.
Summary
- // analyst note
- The live NASA Ames legacy ASN of the AS23/AS24 pair; actively routed and IX-connected at NASA-AIX. Distinct from AS22 (U.S. Navy) and from the dormant AS23.
- // security note
- NEUTRAL/DATED: HE 'announces bogons' flag and zero RPKI-valid are consistent with an old government network, not abuse; no notable public abuse signal found as of 2026-06-08.
About this ASN.
AS24 is a legacy single-digit allocation registered under ARIN to the National Aeronautics and Space Administration (org record at NASA's Office of the CIO, Marshall Space Flight Center), and it is the live member of the two genuine low-number NASA ASNs — distinct from AS22, which is the U.S. Navy, and from AS23, the dormant NASA ASN. RFC 1020/1166 list AS24 as "AMES-NAS-GW," the NASA Ames Numerical Aerodynamic Simulation (NAS) gateway. It actively announces about six IPv4 prefixes (one originated) plus two IPv6, roughly 65,536 IPv4 addresses, and is present at one internet exchange — NASA-AIX in Mountain View, CA, consistent with its Ames heritage — with seven observed BGP peers. Hurricane Electric flags "AS24 announces bogons" and shows zero RPKI-valid originations; both are worth noting but are consistent with an old government network rather than abuse. The ARIN ASN RegDate is 1984-08-03. For triage this is the actively-routed, IX-connected NASA Ames legacy ASN of the AS23/AS24 pair. No notable public abuse signal was found as of June 2026.
- Operator
- National Aeronautics and Space Administration (ARIN OrgId NASA; Office of the CIO, MSFC, AL) [Confirmed] — ARIN RDAP
- Country / RIR
- US, ARIN [Confirmed]
- Allocated
- ARIN ASN RegDate 1984-08-03; original assignment not separately exposed [Confirmed for shown date]
- Org status
- active — nasa.gov
Security/abuse context (NEUTRAL, DATED)
bogon flag and zero RPKI-valid are consistent with an old government network, not abuse; no notable public abuse signal found as of 2026-06-08 — bgp.he.net
Network & routing
- Network type
- government / civil space agency [Confirmed]
- Size
- 6 IPv4 prefixes (1 originated), 2 IPv6 (~65,536 IPv4 addrs) — bgp.he.net (2026-06)
- Routing/peering
- actively announcing; present at 1 IX (NASA-AIX, Mountain View, CA); 7 peers; HE flags "announces bogons"; RPKI originated-valid 0 — bgp.he.net
- Notable usage
- [historical] RFC 1020/1166 "AMES-NAS-GW" = NASA Ames Numerical Aerodynamic Simulation (NAS) gateway. [current] live NASA Ames legacy ASN — nasa.gov
- Related ASNs
- AS23, AS21556 (NASA Ames E-root), and other NASA ASNs [Confirmed]
- Analyst note
- The live NASA Ames legacy ASN of the AS23/AS24 pair; actively routed and IX-connected at NASA-AIX. Distinct from AS22 (U.S. Navy).
What this network routes.
- 198.10.0.0/16
- 2001:4d0:108::/48
Who it talks to.
Neighbours observed by RouteViews at 2026-09-20, lowest ASN first. Relationships are inferences from the CAIDA AS Relationships Dataset, 2026-08-01, and establish no commercial arrangement; a dash means the inference did not resolve.
| ASN | Operator | Role |
|---|---|---|
| AS297 | National Aeronautics and Space Administration (NASA) | upstream |
| AS2152 | — | upstream |
| AS7575 | — | upstream |
| AS293 | Energy Sciences Network (ESnet) | peer |
| AS2153 | — | peer |
| AS10343 | — | downstream |
| AS11537 | — | peer |