AS675

AS675 (MSUS-AS) is an active, live-routed autonomous system registered under ARIN to Minnesota State Colleges and Universities (Minnesota State), the public higher-education system office headquartered in Saint Paul, Minnesota. It currently announces three IPv4 prefixes and one IPv6 prefix, totaling roughly 139,264 IPv4 addresses, and routes as a single-homed stub network rather than a dormant or legacy registration.

The ASN was registered on 1990-05-24 per ARIN RDAP's top-level autnum registration event, independently corroborated by bgp.tools, and was last administratively updated on 2013-07-01. Minnesota State's registrant record (handle MSUS-Z) lists Wells Fargo Place, 30 7th Street East Suite 350, Saint Paul, MN, with abuse@minnstate.edu as the abuse contact.

Operationally, AS675 sits within the Learning Network of Minnesota (LNM), the shared telecom backbone connecting roughly 60 public higher-ed campuses, K-12 districts, tribal and regional learning centers, healthcare sites, and government entities statewide, governed jointly by Minnesota State and the University of Minnesota. Its sole observed upstream is AS57, associated with the University of Minnesota / Northern Lights GigaPoP.

CAIDA ranks AS675 #12,955 globally with a customer cone limited to itself — zero downstream customer ASNs and zero settlement-free peers — consistent with an end-site education network rather than a transit provider. It holds no IXP presence and is geolocated to a single metro (Saint Paul, MN).

Exposure

No notable public abuse signal found for AS675 as of 2026-07-18 across Spamhaus ASN-DROP (confirmed absent via the live JSON feed), AbuseIPDB/abuse.ch search visibility, and community hosting-abuse blocklists — an expected clean profile for a non-hosting education network.

RPKI posture

Unknown/not determined — RIPEstat's rpki-validation endpoint requires a specific prefix parameter that was not supplied, and bgp.he.net shows no RPKI-valid or RPKI-invalid originations on record for AS675.

Notable incident (victim-side)

Minnesota State University Moorhead (MSUM), a member institution of the Minnesota State system AS675 belongs to, suffered a ransomware attack detected around 2024-02-01 and disclosed 2024-02-16, causing a multi-week outage; this is Minnesota State as a victim of an external attack, not evidence of AS675 address space hosting abuse.

Peering ambiguity

CAIDA's degree data shows a single provider (AS57) and zero settlement-free peers for AS675, while bgp.tools lists AS57 in both its upstream and peer columns — a minor classification discrepancy between third-party trackers, not a security concern.

Operator

Minnesota State Colleges and Universities (Minnesota State system office; ARIN handle MSUS-Z), Wells Fargo Place, Saint Paul, MN [Confirmed] — https://rdap.arin.net/registry/autnum/675

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/675

Allocated

1990-05-24 (ARIN RDAP top-level autnum registration event, corroborated by bgp.tools); last changed 2013-07-01 [Confirmed] — https://rdap.arin.net/registry/autnum/675, https://bgp.tools/as/675

Org status

public state higher-education system office (Minnesota State, formerly MnSCU); not a private ISP [Confirmed] — https://www.minnstate.edu/system/its/index.html

Contacts

abuse@minnstate.edu [Confirmed] — https://rdap.arin.net/registry/autnum/675

Security/abuse context

no notable public abuse signal as of 2026-07-18 — absent from Spamhaus ASN-DROP, AbuseIPDB/abuse.ch search visibility, and community bad-ASN blocklists; one victim-side incident (MSUM ransomware, Feb 2024) unrelated to AS675 hosting abuse [Confirmed] — https://www.spamhaus.org/drop/asndrop.json, https://www.valleynewslive.com/2024/02/16/internet-outage-msum-caused-by-cyber-attack/

Network & routing

Network type

public higher-education state system network; part of the Learning Network of Minnesota (LNM), operated jointly with Minnesota IT Services [Likely] — https://www.minnstate.edu/system/lnm/index.html

Size

3 IPv4 prefixes / ~139,264 IPv4 addresses (134.29.0.0/16, 199.17.0.0/16, 204.77.32.0/19); 1 IPv6 prefix (2607:f930::/32) [Confirmed] — https://bgp.he.net/AS675, https://bgp.tools/as/675

Routing/peering

single upstream AS57 (Univ. of Minnesota / Northern Lights GigaPoP); customer cone = 1 ASN (itself), 3 prefixes, 139,264 addresses; no settlement-free peers reported by CAIDA [Confirmed]; bgp.tools lists AS57 in both upstream and peer columns [Likely] — CAIDA ASRank AS675, https://bgp.tools/as/675

RPKI

not determined — RIPEstat rpki-validation requires a per-prefix query not supplied this cycle; bgp.he.net shows no valid/invalid ROAs on record [Unknown] — https://bgp.he.net/AS675

Notable usage

LNM connects ~60 campuses/centers statewide — all University of Minnesota and Minnesota State institutions plus K-12 districts, healthcare centers, government entities, and public libraries [Confirmed] — https://www.minnstate.edu/system/lnm/index.html

Related ASNs

AS57 (upstream; University of Minnesota / Northern Lights GigaPoP) [Confirmed] — CAIDA ASRank AS675

Analyst note

CAIDA flags AS675 cliqueMember=true despite a total degree of 1 (provider-only, no customers/peers), which is unusual for that profile and is reported as-is rather than reinterpreted; treat as a possible CAIDA data quirk.