AS26397 — OPTIPUTER

AS26397 announces 11 IPv4 prefixes covering 6,768 addresses and 1 IPv6 prefixes.

About this network

OPTIPUTER is the autonomous system for The Regents of the University of California - University of California, San Diego.

What it's used for

• The address space carries university infrastructure, evidenced by netnames OPTIPUTER-NET and UCSD-NET-169-228 and reverse DNS entries like gftp.t2.ucsd.edu and sdsc-28.t2.ucsd.edu.
• The AS announces 6768 IPv4 addresses across 11 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a self-contained academic network rather than a transit provider.

Notable

• Registrants consistently identify the holder as The Regents of the University of California - University of California, San Diego, with some prefixes specifically registered to University of California, San Diego.
• The inventory is finely subdivided, including multiple small blocks within the 67.58.53.0/24 range, reflecting internal site-by-site segmentation typical of a large campus.

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

Announced prefixes

• 67.58.32.0/20
• 67.58.48.0/22
• 67.58.52.0/24
• 67.58.53.0/25
• 67.58.53.128/28
• 67.58.53.160/27
• 67.58.53.192/26
• 67.58.54.0/25
• 67.58.55.0/24
• 169.228.130.0/23
• 169.228.132.0/24
• 2607:f720:1700:1b30::/64

Upstream networks

• AS7377 University of California, San Diego
• AS2153 CENIC

Adjacent networks

• AS7377 University of California, San Diego
• AS2153 CENIC