AS10988 COLLEGE-OF-WESTERN-IDAHO

COLLEGE-OF-WESTERN-IDAHO is the College of Western Idaho, a public community college serving the Boise/Nampa metropolitan area. This is a campus network's public edge, and a deliberately small one.

What it's used for

RIS sees a single announced IPv4 prefix, 207.70.33.0/24 (256 addresses), no IPv6, and 2 observed neighbours. Two upstreams against one /24 is the shape of an institution that multi-homes for resilience but has essentially no public address space to advertise.

A single /24 is far smaller than the student and staff population of a community college would suggest. That is the interesting part, and it is normal for a modern campus: the internet-facing footprint is a DMZ (public web, mail edge, VPN concentrators, perhaps a wireless NAT pool), while students, staff and lab machines sit behind carrier-grade NAT or reach the internet through a state education network rather than out of the college's own announced space. Small institutions increasingly do not need public addresses per host, so the announced space measures the edge, not the campus.

Notable

• Holding an ASN at all, and multi-homing it, tells you more about this network than its size does: the college wanted provider independence for its public services rather than accepting a single provider's block.
• No PTRs came back on the two addresses sampled. That is a sample, not a finding; no claim is made here about the delegation of the reverse zone.