AS11257 — UNIVERSITY-LETHBRIDGE
Network type: education
AS11257 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.
About this network
UNIVERSITY-LETHBRIDGE is the campus network of the University of Lethbridge, a public research university in Lethbridge, Alberta, with a second campus in Calgary. This is a straightforward single-institution academic AS.
What it's used for
The whole network is one prefix: RIS observes a single IPv4 announcement, 142.66.0.0/16, carrying 65,536 addresses, with no IPv6 and three observed neighbours. That shape is the classic Canadian university edge. A legacy /16 is far more space than the institution's staff and student population needs today, and it is the tell of an early allocation to a research and education body rather than of a large modern operator: the university got a /16 in the era when a /16 was what a university got, and it has never had to fragment it.
Three neighbours is an enterprise-scale edge. A university connects through its provincial and national research and education networks, plus commercial transit for redundancy, which produces exactly a handful of BGP adjacencies, not the hundreds a wholesale carrier accumulates. The space carries campus infrastructure: staff and student wired and wireless access, residence networks, library and administrative systems, and research computing.
Notable
The /16 is registered to ULETH, org University of Lethbridge — the holder announces its own space, under its own ARIN handle, with nothing leased in. A clean single-registrant, single-prefix, self-held inventory rules out every ambiguity that makes other ASNs in this range hard to classify.
Interesting
Announcing one prefix and nothing else, with no more-specific deaggregation, is unusually tidy. Most /16 holders end up punching out /24s over the years for multihoming or traffic engineering. Lethbridge has not needed to.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 142.66.0.0/16
Upstream networks
Adjacent networks
awaiting query
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