AS302

AS302 is a low-numbered, ARPANET-era autonomous system registered under ARIN to Baylor College of Medicine (BCM), a private nonprofit academic medical school in the Texas Medical Center at One Baylor Plaza, Houston, TX 77030. The ASN was allocated on 1989-06-23 per the ARIN RDAP autnum top-level registration event, placing it among the oldest ASNs still actively routing. BCM uses it as an educational/research network that serves the college's four schools and provides connectivity to affiliated Houston-area healthcare and academic institutions across the Texas Medical Center — including Texas Children's Hospital, Houston Methodist, Harris County Hospital District, the University of Houston, and Rice University. The network announces 11 IPv4 prefixes (primary block 128.249.0.0/16, roughly 67,000 addresses) and 2 IPv6 /48 prefixes (2001:468:1a08::/48 and 2620:0:5070::/48), all widely visible to RIS route collectors (323/323 v4, 321/321 v6). PeeringDB (net/7770) lists an open peering policy — never via route servers, no ratio or contract requirements, 5–10 Gbps traffic mostly inbound, regional scope — with upstreams Arelion (AS1299), NTT America (AS2914), Zayo (AS6461), and Rice University (AS4557). PeeringDB names the network "Baylor College of Medicine CHAT"; the IRR route-set is AS-CHAT, but no official expansion of "CHAT" appears in any public source, so it is left unknown. No notable public abuse signal was found as of 2026-06-28 — clean across CleanTalk (0% spam rate), bgp.tools (no routing anomalies), AbuseIPDB, and NANOG archives. The two 2023 security incidents touching BCM (the Advarra vendor breach and an employee-wellness portal vendor breach) were inbound third-party compromises, not outbound abuse from AS302.

Operator

Baylor College of Medicine (private nonprofit academic medical school; ARIN org handle BCM-5, One Baylor Plaza, Houston, TX 77030) [Confirmed] — ARIN RDAP autnum/302, bcm.edu

Country / RIR

US, ARIN [Confirmed] — ARIN RDAP autnum/302

Allocated

1989-06-23 (ARIN autnum top-level registration event; NOT an IEEE date — IEEE publishes no ASN registration dates); last changed 2015-04-16 [Confirmed] — ARIN RDAP autnum top-level events (A3, corroborated A2/A4/A5)

AS name

BCM-INFO-NET-AS [Confirmed] — ARIN RDAP autnum/302, ipinfo.io/AS302

Org status

private independent nonprofit (501(c)(3)) academic medical school; founded 1900; separated from Baylor University in 1969 to become independent; located in the Texas Medical Center, Houston [Confirmed] — en.wikipedia.org/wiki/Baylor_College_of_Medicine, bcm.edu

Contacts

role abuse POC abuse@bcm.edu, +1-713-798-3900 — APC8-ARIN, an organisational "Abuse Point of Contact" group record (RDAP kind=group), unvalidated since 2025-01-08. The technical and administrative POCs are named individuals — Scott Mace (SM346-ARIN, unvalidated) and Jeff Early (EARLY-ARIN, validated) — whose personal mailboxes are not reproduced here

[Confirmed] — ARIN RDAP autnum/302

Security/abuse context (NEUTRAL, DATED)

no notable public abuse signal found as of 2026-06-28 — CleanTalk reports 0.00% spam rate; no bgp.tools routing anomalies; no AbuseIPDB ASN-level listing; no NANOG abuse threads. The 2023 Advarra and employee-wellness-portal vendor breaches affecting BCM data were inbound third-party compromises, not outbound abuse from AS302

Network & routing

Network type

educational/research (academic medical center network) serving BCM plus affiliated Texas Medical Center healthcare/academic institutions [Confirmed] — peeringdb.com/net/7770, bgp.he.net/AS302

Size

11 IPv4 prefixes (~67,000 addresses; primary block 128.249.0.0/16) and 2 IPv6 /48 prefixes [Confirmed] — RIPEstat announced-prefixes (AS302), bgp.he.net/AS302

Routing/peering

open peering policy, never via route servers, no ratio/contract requirements, 5–10 Gbps mostly inbound, regional scope; visible to 323/323 v4 and 321/321 v6 RIS peers; 11 observed neighbours [Confirmed for policy via PeeringDB; Confirmed for RIS visibility via RIPEstat]. Facilities: Databank Houston West, Equinix DA1 Dallas

[Confirmed] — peeringdb.com/net/7770, RIPEstat routing-status (AS302)

Upstreams

Arelion (AS1299), NTT America (AS2914), Zayo (AS6461), Rice University (AS4557) [Likely] — bgp.tools/as/302, ipinfo.io/AS302

RPKI

not assessed — per-prefix ROA validation was not run in this pass; bgp.tools shows prefixes against an unauthenticated IRR source with no anomaly/hijack warnings [Unknown for RPKI; Confirmed for no-anomaly] — bgp.tools/as/302

Notable usage

campus and research network for BCM's four schools (School of Medicine, Graduate School of Biomedical Sciences, National School of Tropical Medicine, School of Health Professions) and affiliated Texas Medical Center institutions; one of the oldest ASNs still active (allocated 1989)

[Confirmed] — en.wikipedia.org/wiki/Baylor_College_of_Medicine, peeringdb.com/net/7770

Downstreams

Texas Children's Hospital (AS11015), Houston Methodist (AS33563), Harris County Hospital District (AS46298), Texas Medical Center (AS23218), Community Health Choice (AS19708), University of Houston (AS7276) [Likely] — bgp.tools/as/302

IRR

AS-SET AS-CHAT (also cited as AS-BCMI1 / AS-BCMI2); the "CHAT" suffix in the PeeringDB name has no documented expansion in any public source [Confirmed for set name; Unknown for expansion] — peeringdb.com/net/7770, bgp.he.net/AS302

Analyst note

low-numbered early ARIN ASN, actively announcing, registered to a major academic medical center; clean abuse posture. allocated_date 1989-06-23 is the autnum top-level registration event — entity/org sub-object dates (1995/2007/2013 POCs, 2015 org last-changed) are decoys and were not used.