asn.dev

Autonomous system

AS7847 NASA-HPCC-ESS

Unclassified ARIN

IPv4 addresses 65.54K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

NASA Goddard Space Flight Center

United States · AI-generated

government research legacy

NASA-HPCC-ESS belongs to NASA's Goddard Space Flight Center in Greenbelt, Maryland. The handle names the High Performance Computing and Communications programme's Earth and Space Sciences project, the Goddard effort that ran NASA's massively-parallel supercomputing testbeds for Earth- and space-science grand-challenge codes.

What it's used for

  • A single legacy /16, 169.154.0.0/16, registered to NASA in December 1994 under the network name GSFC-ATM — Goddard's ATM-era research network.
  • Government research connectivity at Goddard rather than any kind of public service. There is no reverse DNS visible on the space and no subscriber or hosting addressing of any kind.

Notable

  • This is US federal government address space held by a civilian science agency. Traffic from it is a Goddard system or a research host, not a consumer or a commercial server.
  • The registration name preserves the technology of the day: GSFC-ATM refers to Asynchronous Transfer Mode, the high-speed networking Goddard used to feed its supercomputing testbeds in the mid-1990s.

Interesting

  • The ESS project was where NASA pushed scalable computing to its limits, including the Cray T3E installed at Goddard, and the same Goddard group under Jim Fischer is where the Beowulf commodity-cluster project was born. AS7847's address space is a direct artefact of that era of NASA supercomputing.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS270National Aeronautics and Space Administration59
AS10886University of Maryland21

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 65.54K addresses IPv6 1 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS7847
Registry name
NASA-HPCC-ESS
Registrant
NASA Goddard Space Flight Center
Abuse contact
nobody@example.com
Registered
1997-01-27
Last changed
2010-08-06
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 3 with no ROA
ROAs
0 authorising AS7847
ASPA
no ASPA record
IRR
67% registered · 2 of 3 announcements 1 other origin
Route objects
2 naming AS7847

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 2026-10-17. 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

Cross-check