Autonomous system detail

AS759

Not announced

Operated by MERIT-AS-25 - Merit Network Inc..

Summary

// analyst note
Dormant/legacy ASN. WHOIS/RDAP resolves to Merit Network, but live routing runs under AS237, not AS759. RPKI and abuse-context fields are genuinely Unknown per this research pass, not assumed clean or inherited from AS237; CAIDA AS-rank 79,459 with a customer cone of just itself (1 ASN / 0 prefixes / 0 addresses), queried directly rather than inherited.
// security note
UNKNOWN/DATED: no Spamhaus ASN-DROP, URLhaus, or AbuseIPDB check was completed for AS759 specifically as of 2026-07-28 due to the research session's WebSearch budget being exhausted; treat as an unverified coverage gap, not a confirmed clean record.
IPv4 prefixes
0
~0 addresses
IPv6 prefixes
0
—
Peer networks
0
0 up · 0 down
IANA block
1-1876
Assigned by ARIN
[ 01 ] — Context

About this ASN.

Updated  ·  Confidence: Medium

AS759 is a dormant legacy autonomous system registered under ARIN to Merit Network, Inc., a nonprofit Michigan-based research-and-education (R&E) network; it currently announces zero IPv4 and zero IPv6 prefixes in the global routing table, with zero observed BGP peers and no upstreams.

Merit Network was founded in 1966 and today operates roughly 4,000 miles of owned fiber connecting 170+ Michigan communities, serving education, government, healthcare, library, and nonprofit customers. AS759 (MERIT-AS-25) was allocated by ARIN on 1990-10-08 and last changed 2012-04-02, per the autnum's top-level RDAP registration events — distinct from the several decoy entity-level dates nested in the same record.

Merit's actively announced, currently-peering ASN is a separate number, AS237, which carries a published PeeringDB profile (Selective peering policy, roughly 300-500 Gbps mostly inbound, present at Any2Chicago, DET-iX, Equinix Chicago, and the Grand Rapids IX). AS759 itself has no PeeringDB listing, so its own peering policy and RPKI posture are genuinely Unknown rather than assumed clean or inherited from AS237. CAIDA AS-rank places AS759 at 79,459 with a customer cone of just itself — 1 ASN / 0 prefixes / 0 addresses — and zero topology degree.

Operator
Merit Network, Inc. (nonprofit R&E network; ARIN handle MERIT-AS-25, Ann Arbor, MI) [Confirmed] — https://rdap.arin.net/registry/autnum/759, https://www.merit.edu
Country / RIR
US, ARIN [Confirmed] — ARIN RDAP autnum record
Allocated
1990-10-08 (ARIN RDAP autnum top-level "registration" event); last changed 2012-04-02 (top-level "last changed" event) [Confirmed] — https://rdap.arin.net/registry/autnum/759
Org status
Active (ARIN registration status); Merit Network is an active independent nonprofit corporation founded 1966 [Confirmed] — https://rdap.arin.net/registry/autnum/759, https://www.merit.edu
Contacts
abuse@merit.edu (+1-734-527-5740); ipreg@merit.edu (+1-734-763-3448); operations@merit.edu (+1-734-527-5717); HQ 880 Technology Drive, Suite B, Ann Arbor, MI 48108 [Confirmed] — https://rdap.arin.net/registry/autnum/759

Security/abuse context (NEUTRAL, DATED)

Unknown as of 2026-07-28 — Spamhaus ASN-DROP, URLhaus, and AbuseIPDB were not queried for AS759 specifically before the research session's WebSearch budget was exhausted; this is a coverage gap, not a verified clean record

[Unknown] — https://www.spamhaus.org/resource-hub/dnsbl/the-return-of-the-asn-drop/

Network & routing

Network type
regional research and education (R&E) network; AS759 is legacy/inactive (Merit's active network runs under AS237) [Confirmed] — https://www.merit.edu, https://bgp.he.net/AS759
Size
dormant — 0 IPv4 prefixes and 0 IPv6 prefixes announced; CAIDA AS-rank 79,459 with a customer cone of 1 ASN / 0 prefixes / 0 addresses (self only) and asnDegree total 0 [Confirmed] — https://bgp.he.net/AS759, https://bgp.tools/as/759 (2026-07-27), CAIDA AS-rank API (api.asrank.caida.org)
Routing/peering
NOT announced — 0 observed BGP peers, no upstreams listed [Confirmed]. No PeeringDB listing exists for AS759; Merit's active AS237 runs a Selective peering policy (peering@merit.edu), which does not apply to AS759 [Confirmed for AS237 policy; Unknown for AS759's own policy] — https://bgp.tools/as/759, https://www.peeringdb.com/net/928, https://www.merit.edu/network/peering/
RPKI
Unknown — not assessable; no ROA data surfaced, consistent with zero announced prefixes [Unknown] — https://bgp.tools/as/759
Notable usage
AS759 is a legacy/secondary Merit Network ASN with no current routing activity; Merit's active operational network (peering, transit, ~4,000 miles of fiber) runs under the separate ASN AS237 [Confirmed] — https://bgp.he.net/AS759, https://www.merit.edu/network/peering/
Related ASNs
AS237 (Merit's active, currently-peering operational network) [Confirmed] — https://www.peeringdb.com/net/928
Analyst note
AS759 (MERIT-AS-25) is a dormant legacy ASN under a well-established nonprofit R&E operator. Live Merit routing runs under AS237, not AS759. Abuse-context and RPKI fields are genuinely Unknown due to research-session search-budget limits, not fabricated as clean; AS rank and customer cone are sourced from CAIDA, queried directly this pass.
[ 02 ] — Announced prefixes

What this network routes.

0 prefixes total · RIPEstat data · cached, not real-time
// IPv4 prefixes0
No IPv4 prefixes announced.
// IPv6 prefixes0
No IPv6 prefixes announced.
[ 03 ] — Notable peers & upstreams

Who it talks to.

0 observed neighbours
Neighbour data unavailable from public BGP collectors.