AS574

AS574 is a legacy autonomous system number allocated under ARIN to the Pittsburgh Supercomputing Center (PSC), a nonprofit high-performance-computing and research-networking center jointly operated by Carnegie Mellon University and the University of Pittsburgh since 1986. ARIN's own RDAP name field for this ASN — PSC-TEST-AS — signals it was registered as a test or non-production number rather than PSC's operational routing ASN. Corroborating that, every routing source checked (RIPEstat RIS, CAIDA AS Rank, bgp.he.net) agrees AS574 currently announces zero IPv4 and zero IPv6 prefixes, has zero observed BGP peers, upstreams, or customers, and sits at CAIDA rank 79,459 with a customer cone limited to itself. PSC's actual production regional network — 3ROX, the GigaPoP serving universities and research institutions across western/central Pennsylvania — appears in third-party BGP-search results under a separately numbered ASN, though that cross-reference is not independently confirmed against ARIN. RPKI posture cannot be evaluated because no prefixes are announced, so no ROAs exist to validate. No notable public abuse signal was found for AS574 as of 2026-07-11.

Operator

Pittsburgh Supercomputing Center (PSC-Z, ARIN registrant), a joint research center of Carnegie Mellon University and the University of Pittsburgh, 300 S Craig St, Pittsburgh, PA 15213 [Confirmed] — https://rdap.arin.net/registry/autnum/574, https://www.psc.edu/about/

Country / RIR

US, ARIN [Confirmed] — https://rdap.arin.net/registry/autnum/574

AS name (RDAP)

PSC-TEST-AS — the name itself indicates a test/non-production registration [Confirmed] — https://rdap.arin.net/registry/autnum/574

Allocated

1990-01-31 (ARIN autnum top-level "registration" event, first-party RIR fact); last changed 2012-04-02 (top-level "last changed" event) [Confirmed] — https://rdap.arin.net/registry/autnum/574

Org status

active nonprofit joint venture of Carnegie Mellon University and the University of Pittsburgh; receives federal, Pennsylvania state, and private-industry funding [Confirmed] — https://www.psc.edu/about/

Contacts

pscnet-admin@psc.edu (technical/abuse role mailbox); the administrative POC is Michael H. Lambert and a further technical/abuse POC is Stephen Cunningham — both named individuals whose personal mailboxes are not reproduced here [Confirmed] — https://rdap.arin.net/registry/autnum/574

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-07-11 — checked general web search, NANOG mailing-list archives, and a partial Spamhaus ASN-DROP fetch; AbuseIPDB and Cisco Talos reputation-center lookups were not retrievable via automated methods and remain Unknown rather than confirmed-clean

Network & routing

CAIDA AS rank

79,459; customer cone = 1 ASN (itself), 0 prefixes, 0 addresses [Confirmed] — https://api.asrank.caida.org/v2/restful/asns/574

Network type / peering

not a routed commercial or transit network; no PeeringDB record exists for AS574 itself (peeringdb.com/asn/574 = 404). PSC's regional GigaPoP arm, 3ROX, documents its own connectivity (Level3/Cogent commodity transit, Internet2/ESnet/OARnet research peering, native IPv6 since 2005) but that operational network appears to route under a different, unconfirmed ASN per third-party BGP search results — not verified to be the same number as AS574

[Likely] — https://www.3rox.net/index.php/25-gigapop/network-connections/23-connections, https://www.peeringdb.com/asn/574

RPKI

not assessable — AS574 announces no prefixes, so no ROAs exist to validate [Confirmed] — https://stat.ripe.net/AS574

Notable usage

PSC is one of the original NSF-funded supercomputing centers (founded 1986); its networking division operates 3ROX, the regional GigaPoP for higher-ed/research institutions in western and central Pennsylvania, connecting to national research-computing backplane networks. AS574 specifically shows no current routing-table presence, consistent with a legacy/test allocation rather than PSC's production network

[Likely] — https://en.wikipedia.org/wiki/Pittsburgh_Supercomputing_Center, https://www.psc.edu/about/

Status

active per ARIN RDAP, but operationally dormant — 0 announced IPv4 prefixes, 0 IPv6 prefixes, 0 BGP peers/upstreams/customers across RIPEstat RIS (0/327 v4 peers, 0/322 v6 peers) and CAIDA

[Confirmed] — https://stat.ripe.net/AS574, https://api.asrank.caida.org/v2/restful/asns/574, https://bgp.he.net/AS574

Analyst note

encountered as a dormant/test ASN registered to a historically significant nonprofit HPC center; WHOIS/RDAP resolves cleanly to PSC, but there is zero live routing activity under AS574 and PSC's actual GigaPoP network is not confirmed to share this AS number.