AS16742 — Universidad Catolica de Valparaiso
AS16742 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.
About this network
One university holds sixty-five thousand addresses and announces every one of them as a single block.
What it's used for
- A university's network. One IPv4 prefix announced from Chile, no sixth-version space, sixty-five thousand five hundred and thirty-six addresses, through two observed BGP neighbours.
Notable
- The AS handle is the university's four-word name written out in full with spaces, unabbreviated and without the accents the name normally carries.
- The single block's netname is not a name either: it is the range's first and last addresses with spaces around the dash.
- The registrant repeats the same four-word name.
- So all three label fields say the same thing in three formats, and none of them was shortened.
- Three addresses were queried for reverse DNS and none returned a name.
Interesting
- A block of this size given to one institution is an artefact of early allocation, when a university asking for space received a whole range without being asked how many machines it had. Nobody hands out anything like it now, and the holders that have one have kept it.
- Announcing the entire range as one piece rather than splitting it is the simplest possible configuration: no internal boundaries are visible from outside, and any structure inside is the university's own business.
- Two upstreams is the academic pattern: one research network, one commercial path, with the same addresses reachable through either.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 158.251.0.0/16
Upstream networks
Adjacent networks
BGP / ASN / CIDR
awaiting query
enter an AS number, IP address, or organisation name above
IPv4
resolving...
IPv6
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IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED