AS16580 — ATHABASCA-U

AS16580 announces 15 IPv4 prefixes covering 7,424 addresses and 0 IPv6 prefixes.

About this network

Fifteen prefixes, one netname, one parent range, and not a single address that answers.

What it's used for

• A university's network. Fifteen IPv4 prefixes announced from Canada, no IPv6, seven thousand four hundred and twenty-four addresses, through two observed BGP neighbours.

Notable

• Every listed block carries the same netname, which is also the AS handle: the university's name and a single letter for the word university.
• Every block sits inside one parent range, cut into pieces of three different sizes and announced separately rather than as the whole.
• The registrant is the university on all of them, written out in full with no abbreviation.
• Eighteen addresses were queried for reverse DNS and none returned a name.
• Two observed neighbours carry all fifteen prefixes.

Interesting

• Splitting one range into fifteen announcements and giving them all one name means the fragmentation is operational, not administrative. Somebody is steering pieces of the campus separately, and the registry was never told.
• Every extra piece is a routing table entry carried by every router on the internet. Fifteen entries where one would do is a small cost paid by everyone else, which is why the practice is discouraged and why it remains common.
• A university with two upstreams and no reverse names at all is unusual. Campuses normally name their machines; this one publishes nothing outward, and the addresses arrive anonymous.

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

Announced prefixes

• 131.232.3.0/24
• 131.232.4.0/22
• 131.232.10.0/23
• 131.232.12.0/23
• 131.232.14.0/24
• 131.232.17.0/24
• 131.232.18.0/24
• 131.232.28.0/24
• 131.232.32.0/23
• 131.232.56.0/23
• 131.232.68.0/24
• 131.232.71.0/24
• 131.232.72.0/23
• 131.232.80.0/22
• 131.232.104.0/22

Upstream networks

• AS15296 Cybera Inc
• AS852 TELUS Communications Inc.

Adjacent networks

• AS15296 Cybera Inc
• AS852 TELUS Communications Inc.