AS15336 — CONCOR-1

AS15336 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.

About this network

Three upstreams for a single /24, first announced in 2010.

What it's used for

• A university network. A single IPv4 /24 announced from the United States, no IPv6, and three observed BGP neighbours.

Notable

• Three upstreams for two hundred and fifty-six addresses is more redundancy than most blocks this size carry.
• Routing history for this number begins in 2010, the latest start of any network in this part of the range.
• The netname is an abbreviation for network block followed by the institution's three initials.
• The AS handle truncates the university name to six letters and adds a counter.
• Three addresses were queried for reverse DNS and none returned a name.

Interesting

• A late start with a small block and several upstreams is the modern shape of an institutional network. Addresses were scarce by then, so the space is minimal and the resilience comes from routing rather than size.
• Truncating a name to six letters is a habit inherited from registry fields that once had length limits. The limit is gone; the style persists.
• One /24 for a university means almost everything on campus sits behind shared addressing, with only the public services holding addresses of their own.

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

Announced prefixes

• 192.231.160.0/24

Upstream networks

• AS57 University of Minnesota
• AS174 Cogent Communications, LLC

Adjacent networks

• AS57 University of Minnesota
• AS174 Cogent Communications, LLC