AS167

AS167 is a low-numbered, early-era Autonomous System Number registered under ARIN to Wesleyan University, a private liberal-arts university in Middletown, Connecticut (265 Church Street, Science Tower, 06459). The ARIN RDAP record carries an original ASN registration date of 1988-04-04, placing it among the foundational wave of university-operated ASNs, with the record last changed 2023-06-20. The current org handle is WESLEY-2-Z and the network name is WESLEYAN-AS. Operationally it is a small stub/leaf campus network: it announces three IPv4 prefixes — 129.133.0.0/17, 129.133.128.0/18 and 129.133.1.0/24 — covering roughly 49,152 addresses out of the legacy 129.133.0.0/16 Class B space, and announces no IPv6. The /24 is a more-specific deaggregation of the parent /17, which the CIDR Report flags as a routing-table inefficiency rather than any abuse signal. The AS is dual-homed for resilience through two upstreams — AS22742 (Connecticut Education Network, the state higher-education backbone) and AS46887 (Crown Castle Fiber LLC, also branded Zayo Bandwidth) — with no downstream customers and no observed IXP peering, a topology typical of a single-campus institution. RPKI is not deployed: none of the three prefixes have a covering ROA, leaving them RPKI-unknown, though the /17 and /18 are IRR-registered in RADB and the /24 carries a defensive proxy registration in AltDB against ARIN-NONAUTH shutdown. Three ARIN points of contact exist (net_admins@wesleyan.edu and related admin groups) but all are flagged unvalidated, the most recent since 2024-06-06. No notable public abuse signal was found as of June 2026 — no Spamhaus ASN-DROP listing, no BGP hijack or route-leak history, and no threat-actor associations — making it effectively a clean, established academic ASN whose only notable operational gap is the absence of RPKI ROAs.

Operator

Wesleyan University (ARIN org handle WESLEY-2-Z; 265 Church St, Science Tower, Middletown, CT 06459, US) [Confirmed] — ARIN RDAP (https://rdap.arin.net/registry/autnum/167)

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/167

Allocated

ARIN ASN registration 1988-04-04 (an ARIN database registration date, NOT an IEEE/standards-body publication); record last changed 2023-06-20 [Confirmed for the shown dates] — https://rdap.arin.net/registry/autnum/167

Org status

active holder. Wesleyan University — private non-profit liberal-arts university founded 1831, Middletown, CT; governed by a Board of Trustees; operates Information Technology Services (ITS) [Confirmed] — https://www.wesleyan.edu/about/, https://www.britannica.com/topic/Wesleyan-University

Contacts

Network Admins (NETWO9245-ARIN, net_admins@wesleyan.edu) and Systems Administrator (SYSTE695-ARIN) admin groups, plus legacy David Warner (DW485-ARIN); all ARIN POCs flagged unvalidated (most recent since 2024-06-06) [Confirmed] — https://rdap.arin.net/registry/autnum/167

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal as of 2026-06-16; not on Spamhaus ASN-DROP (430-entry JSON checked directly, AS167 absent); no BGP hijack/route-leak history; no threat-actor associations. A "AS167 announces bogons" string on HE.net is contradicted by HE.net's own bogon report and the CIDR Report — assessed as a stale/rendering artifact [Confirmed] — https://www.spamhaus.org/drop/asndrop.json, https://bgp.he.net/AS167, https://www.cidr-report.org/cgi-bin/as-report?as=AS167&v=4&view=2.0

Network & routing

Network type

educational institution / single-campus university network (active); stub/leaf AS [Confirmed] — https://ipinfo.io/AS167, https://bgp.he.net/AS167

Size

~49,152 IPv4 addresses across 3 prefixes (129.133.0.0/17, 129.133.128.0/18, 129.133.1.0/24); no IPv6 announced [Confirmed] — https://bgp.he.net/AS167, https://bgp.tools/as/167

Routing/peering

dual-homed via AS22742 (Connecticut Education Network) and AS46887 (Crown Castle Fiber LLC / Zayo Bandwidth); 0 downstream customers; no observed IXP peering; topology = pure transit customer [Confirmed] — https://bgp.he.net/AS167, https://bgp.tools/as/167

RPKI

not deployed — 0 ROAs; all three prefixes RPKI-unknown. IRR present: /17 and /18 in RADB (last modified 2024-03-06); /24 proxy-registered in AltDB (defensive measure against ARIN-NONAUTH shutdown)

[Confirmed] — https://bgp.he.net/AS167, https://bgp.tools/prefix/129.133.0.0/17, https://bgp.tools/prefix/129.133.1.0/24

Notable usage

campus network serving Wesleyan University students, faculty and staff in Middletown, CT; participation in the Connecticut Education Network state higher-ed backbone; one of the earlier university ASNs (1988 registration) — https://www.wesleyan.edu/about/, https://bgp.he.net/AS167

Peering policy

Unknown — no published PeeringDB entry (PeeringDB /asn/167 and /net/167 returned 404) and no peering-policy page on wesleyan.edu; connectivity is transit-only, typical of small university networks [Likely] — https://bgp.he.net/AS167, https://ipinfo.io/AS167

AS rank

Unknown — not reported by bgp.he.net or bgp.tools for this ASN; one ipinfo.io view lists ~#17,169 globally / ~#2,846 US, treated as single-source and not corroborated [Unknown] — https://ipinfo.io/AS167

Deaggregation note

129.133.1.0/24 is a more-specific of the parent 129.133.0.0/17; CIDR Report flags it as an aggregation inefficiency — routing hygiene, not abuse [Confirmed] — https://www.cidr-report.org/cgi-bin/as-report?as=AS167&v=4&view=2.0

Analyst note

Established, operationally sound single-campus academic ASN with clean public reputation and stable multi-upstream architecture; the one operational gap is missing RPKI ROAs across all prefixes — a common academic-network shortfall.