asn.dev

Autonomous system

AS46206 AS-SANFORDHEALTH

Unclassified ARIN

IPv4 addresses 1.79K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Sanford Health

United States of America · AI-generated

healthcare business enterprise

AS-SANFORDHEALTH is held by Sanford Health.

What it's used for

  • The address space carries internal corporate infrastructure, evidenced by netnames SVH-1 and registrant Sanford Health on the majority of prefixes.
  • The AS announces 1792 IPv4 addresses across 4 prefixes with only 2 observed neighbours, indicating a small, self-contained internal network rather than a transit or access provider.
  • Traffic from this AS consists of internal communications, administrative endpoints, and clinical systems for a large rural health system operating across the United States.

Notable

  • Registrants for the 206.208.216.0/22, 206.208.220.0/24, and 206.208.222.0/24 prefixes are Sanford Health, while the 65.125.46.0/24 prefix is registered to CenturyLink Communications, LLC with netname CENTURYLINK-LEGACY-QWEST-65-112-0.
  • The address inventory is a mix of a /22 block and three /24 blocks, with the 65.125.46.0/24 block retaining legacy Qwest/CenturyLink reverse DNS entries.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS11232Midcontinent Communications328
AS3356Level 3 Parent, LLC121

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 4 prefixes · 1.79K addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS46206
Registry name
AS-SANFORDHEALTH
Registrant
Sanford Health
Abuse contact
eharkin@good-sam.com
Registered
2008-07-15
Last changed
2012-03-02
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 7 with no ROA
ROAs
0 authorising AS46206
ASPA
no ASPA record
IRR
0% registered · 0 of 7 announcements 2 other origin
Route objects
3 naming AS46206

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: 436 networks and 1,771 prefixes, as published 2026-10-13. 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