AS10357 — JMUNET

Network type: education

AS10357 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.

About this network

JMUNET is the network of James Madison University, the public university in Harrisonburg, Virginia. The AS carries the university's campus connectivity and nothing else.

What it's used for

• Campus networking: academic departments and computing labs, student residential networks, library and administrative systems, and the university's research and online-learning infrastructure.
• The footprint is a legacy 134.126.0.0/16 — a class-B block of the era when universities were among the first organisations to get on the internet — plus a single 134.126.253.0/24 more-specific announced out of it, almost certainly for traffic engineering across its two upstreams.

Notable

• Education, and the routing shape is unambiguous. RIS sees 2 IPv4 prefixes / 65,536 addresses announced with 2 observed BGP neighbours. A whole /16 reached through two BGP sessions is the signature of a large single-tenant end-site: it consumes transit and originates only its own space. A carrier with 65k addresses would peer with hundreds of ASes; a hoster would show a far more fragmented and more recently-acquired address plan.
• Two neighbours for a Virginia public university most likely means one commodity transit provider plus a state or regional research-and-education network, which is the standard higher-education connectivity pattern.

Interesting

• The near-total absence of deaggregation is worth noting in its own right. Most organisations this size have shredded their space into dozens of /24s over the years; JMU still announces essentially one clean /16, which suggests a network that has been stable and singly-administered for a very long time.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 134.126.0.0/16

Upstream networks

• AS7795 LUMOS Networks, Inc.
• AS40220 Virginia Polytechnic Institute and State Univ.

Adjacent networks

• AS7795 LUMOS Networks, Inc.
• AS40220 Virginia Polytechnic Institute and State Univ.