Autonomous system
AS3627 NRAO-AS
Unclassified APNIC
Summary
National Radio Astronomy Observatory (NRAO)
government research legacy
The network of the National Radio Astronomy Observatory (NRAO-AS), the US national facility for radio astronomy, funded by the National Science Foundation.
What it's used for
- Networking for NRAO's observatory sites, science operations, and administrative offices.
- Supporting the movement and processing of radio-telescope data — one of the more bandwidth-hungry corners of scientific computing.
Notable
- Federally funded research space, not commercial or eyeball space. Hosts here belong to observatory staff, instruments, and data systems.
- NRAO operates major instruments including the Very Large Array in New Mexico and the Very Long Baseline Array, and takes part in international projects such as ALMA.
Interesting
- Radio astronomy is an unusually demanding network customer: interferometry correlates signals from widely separated antennas, so the observatory's data problem is fundamentally a transport problem.
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 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 256 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS3627- Registry name
- NRAO-AS
- Registrant
- National Radio Astronomy Observatory
- Abuse contact
- hostmaster@nrao.edu
- Registered
- 1994-05-24
- Last changed
- 2023-09-24
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 1 with no ROA
- ROAs
- 0 authorising AS3627
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 1 announcements 1 other origin
- Route objects
- 0 naming AS3627
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