Autonomous system
AS6629 NOAA-SILVERSPRING
Unclassified ARIN
Summary
National Oceanic and Atmospheric Administration
government research legacy
A network of the National Oceanic and Atmospheric Administration (NOAA), the U.S. civilian agency responsible for weather, climate, oceans, and fisheries. The handle NOAA-SILVERSPRING points at NOAA's headquarters campus in Silver Spring, Maryland.
What it's used for
- A single
/24, plus an IPv6 prefix, serving NOAA systems. Administrative contact for the AS is NOAA's N-Wave, the agency's enterprise network, run out of Boulder, Colorado.
Notable
- This is government research address space. Traffic from it is agency staff and agency systems: weather and ocean data, modelling, and the services NOAA publishes from them.
- NOAA operates several networks. This one is a small, specific block tied to the Silver Spring headquarters, not the whole of the agency's address footprint.
Interesting
- The ASN is a genuine mid-1990s ARIN allocation, part of a sequential run issued in June 1995. The organisation handle's
-Zsuffix is an artifact of ARIN's legacy record cleanup, not a sign that the number changed hands.
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.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS3477 | National Oceanic and Atmospheric Administration | 93 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-22, 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 7 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 8 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS6629- Registry name
- NOAA-SILVERSPRING
- Registrant
- National Oceanic and Atmospheric Administration
- Abuse contact
- nwave-arin-abuse@noaa.gov
- Registered
- 1995-06-07
- Last changed
- 2021-03-16
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 3 authorising AS6629
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 3 naming AS6629
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 1,779 prefixes, as published 2026-10-23. 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