asn.dev

Autonomous system

AS7773 SD-NET - South Dakota State Government

Unclassified ARIN

IPv4 addresses 65.79K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

South Dakota State Government

United States · AI-generated

government legacy

Autonomous System 7773 (SD-NET) belongs to the State Government of South Dakota — the state's own network, carrying traffic for state agencies rather than for any commercial customer.

What it's used for

  • Announcing 164.154.0.0/16, a legacy Class B registered to South Dakota in 1993 under the netname SD-NET, plus one additional /24.
  • Serving the state's executive agencies and their public-facing services: government websites, licensing and revenue systems, and the internal connectivity between state offices across South Dakota. State networks of this shape typically also carry K-12 and public-institution traffic under the same umbrella.

Notable

  • Reverse DNS across the range resolves under state.sd.us — for example state_hub1.state.sd.us — which is the clearest possible confirmation that the space is operated by the state itself and not delegated out.
  • This is government address space. IPs here belong to state offices and state systems; they are not eyeball broadband and not hosting, so geolocating them to "South Dakota, government" is meaningful in a way that it would not be for a commercial ISP's pool.

Interesting

  • A whole /16 for a state with under a million residents looks generous by modern standards, and it is: allocations in 1993 were made on request rather than on demonstrated need. Many US states hold similarly sized legacy blocks from the same period.

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

1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS14263South Dakota State Government129

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-05, 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 2 prefixes · 65.79K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America2

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS7773
Registry name
SD-NET
Registrant
South Dakota State Government
Abuse contact
Jeff.Litterick@state.sd.us
Registered
1997-01-08
Last changed
2012-03-20
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS7773
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS7773

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: 454 networks and 1,854 prefixes, as published 2026-11-06. 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