Autonomous system
AS49548 NSA-NET
Unclassified RIPE
Summary
NSA Networks LLC
business ipv6 transit
The AS handle NSA-NET is held by NSA Networks LLC.
What it's used for
- The address space consists exclusively of four IPv6 prefixes:
2a0a:6040:df00::/48,2a0a:6040:dfa0::/44,2a0a:6040:dfe0::/44, and2a0a:6040:dfff::/48. - With zero IPv4 prefixes announced and only two observed neighbours, the network operates as a small-scale IPv6-only entity with limited peering.
- The traffic carried is specific to the operational needs of NSA Networks LLC, which functions as a private business network rather than a public access provider.
Notable
- The registry holder is listed as NSA Networks LLC, which aligns with the AS handle
NSA-NET. - The address inventory is entirely IPv6, with no IPv4 space present in the announced or inventory data.
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 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 0 prefixes · 0 addresses IPv6 4 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS49548- Registry name
- NSA-NET
- Registrant
- NSANETWORKS-MNT
- Abuse contact
- abuse@nsanet.us
- Registered
- 2023-02-14
- Last changed
- 2026-01-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 1 authorising AS49548
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 9 naming AS49548
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 1,781 prefixes, as published 2026-10-16. 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