Autonomous system detail  ·  US flag US

AS127

Announced

Operated by Jet Propulsion Laboratory, US flag US.

Summary

// analyst note
A live, clean NASA/Caltech FFRDC research network; encountered as JPL/NASA scientific traffic. RegDate 1987-09-16 (Confirmed ARIN, verbatim). Announced footprint: 68 IPv4 + 3 IPv6 prefixes (RIPEstat routing-status, more-specifics from 27 ARIN netblocks).
// security note
NEUTRAL/DATED: no notable public abuse signal as of 2026-06-10; clean research network.
IPv4 prefixes
68
~415.5K addresses
IPv6 prefixes
3
announced
Peer networks
3
3 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: High  ·  3 sources  ·  How this page is checked

AS127 is a legacy fall-1987 allocation registered under ARIN to the Jet Propulsion Laboratory (OrgId JPL-15, Pasadena, CA), carrying the handle "JPL-AS127." JPL is a NASA federally funded research-and-development center (FFRDC) managed by the California Institute of Technology, responsible for robotic space missions — Mars rovers, planetary science, and Earth observation. The ARIN RegDate is 1987-09-16 (verbatim for both autnum and org; registry updated 2021-10-29). It is an actively-routed, clean research network: JPL holds 27 ARIN-allocated netblocks and announces 68 IPv4 prefixes (~275,456 addresses) plus 3 IPv6 prefixes per RIPEstat routing-status (more-specifics deaggregated from those netblocks; e.g., 207.151.192.0/19 and 2001:1878:5ff::/48), peering with 3 networks and 2 upstream carriers per bgp.tools, with RPKI valid for its originated prefixes (per bgp.he.net). Its abuse contact resolves to "NASA Abuse" (abuse@nasa.gov) at Marshall Space Flight Center. For triage this is a live NASA/Caltech FFRDC research network encountered as JPL/NASA scientific traffic. No notable public abuse signal was found as of June 2026.

Operator
Jet Propulsion Laboratory (ARIN OrgId JPL-15, Pasadena, CA; NASA FFRDC managed by Caltech) [Confirmed] — ARIN RDAP
Country / RIR
US, ARIN [Confirmed]
Allocated
ARIN RegDate 1987-09-16 (verbatim for autnum and org; registry updated 2021-10-29) [Confirmed]
Org status
active

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal as of 2026-06-10; abuse resolves to "NASA Abuse" (abuse@nasa.gov), Marshall Space Flight Center — ipinfo.io

Network & routing

Network type
FFRDC / research-education (NASA/Caltech) [Confirmed]
Size
27 ARIN-allocated netblocks; announces 68 IPv4 prefixes (~275,456 addresses) + 3 IPv6 prefixes — more-specifics deaggregated from the netblocks, e.g. 207.151.192.0/19, 2001:1878:5ff::/48 — RIPEstat routing-status (2026-06-13) / bgp.he.net
Routing/peering
active; ~3 peers, ~2 upstreams (bgp.tools); RPKI valid for originated prefixes — bgp.he.net
Notable usage
[historical/current] "JPL-AS / Jet Propulsion Laboratory" — a NASA FFRDC managed by Caltech, responsible for robotic space missions (Mars rovers, planetary science, Earth observation) — jpl.nasa.gov
Related ASNs
NASA-family ASNs (e.g. AS23/AS24/AS41 seen earlier in this sweep) [Likely]
Analyst note
A live, clean NASA/Caltech FFRDC research network; encountered as JPL/NASA scientific traffic.
[ 02 ] — Announced prefixes

What this network routes.

71 prefixes total · as observed by RouteViews at 2026-09-20 · one collector view, not a global census
// IPv4 prefixes68
  1. 128.149.0.0/16/16
  2. 137.228.0.0/16/16
  3. 137.78.0.0/16/16
  4. 137.79.0.0/16/16
  5. 137.79.128.0/17/17
  6. 137.78.0.0/18/18
  7. 137.79.0.0/18/18
  8. 137.78.224.0/19/19
  9. 137.78.64.0/19/19
  10. 137.79.64.0/19/19
  11. 207.151.192.0/19/19
  12. 137.78.112.0/20/20
  13. 137.78.128.0/20/20
  14. 137.78.192.0/20/20
  15. 137.79.112.0/20/20
  16. 207.151.192.0/20/20
  17. 137.78.160.0/21/21
  18. 137.78.168.0/21/21
  19. 137.78.184.0/21/21
  20. 137.78.208.0/21/21
  21. 207.151.208.0/21/21
  22. 137.78.100.0/22/22
  23. 137.78.108.0/22/22
  24. 137.78.148.0/22/22
  25. 137.78.156.0/22/22
  26. 137.78.180.0/22/22
  27. 137.78.216.0/22/22
  28. 137.78.96.0/22/22
  29. 137.79.100.0/22/22
  30. 137.79.96.0/22/22
  31. 207.151.100.0/22/22
  32. 207.151.104.0/22/22
  33. 207.151.212.0/22/22
  34. 207.151.216.0/22/22
  35. 137.78.104.0/23/23
  36. 137.78.146.0/23/23
  37. 137.78.154.0/23/23
  38. 137.78.178.0/23/23
  39. 137.78.220.0/23/23
  40. 137.79.106.0/23/23
  41. 198.147.118.0/23/23
  42. 207.151.220.0/23/23
  43. 207.151.98.0/23/23
  44. 137.78.106.0/24/24
  45. 137.78.107.0/24/24
  46. 137.78.144.0/24/24
  47. 137.78.145.0/24/24
  48. 137.78.152.0/24/24
  49. 137.78.153.0/24/24
  50. 137.78.176.0/24/24
  51. 137.78.177.0/24/24
  52. 137.78.222.0/24/24
  53. 137.78.223.0/24/24
  54. 137.79.104.0/24/24
  55. 137.79.105.0/24/24
  56. 137.79.109.0/24/24
  57. 137.79.110.0/24/24
  58. 192.138.85.0/24/24
  59. 192.159.131.0/24/24
  60. 192.159.132.0/24/24
  61. 192.159.133.0/24/24
  62. 192.159.134.0/24/24
  63. 192.159.138.0/24/24
  64. 198.147.118.0/24/24
  65. 198.147.119.0/24/24
  66. 207.151.150.0/24/24
  67. 207.151.222.0/24/24
  68. 207.151.96.0/24/24
// IPv6 prefixes3
  1. 2001:1878:500::/40/40
  2. 2001:1878:5ff::/48/48
  3. 2620:118:400e::/48/48
[ 03 ] — Notable peers & upstreams

Who it talks to.

3 observed neighbours
// Notable connections3 of 3 observed

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.

ASNOperatorRole
AS226 Los Nettos (c/o USC-ITS) upstream
AS567 Los Nettos Regional Network (operated by USC Information Technology Services) upstream
AS23005 — upstream
Neighbours observed via public BGP collectors; not a complete peering list.