Autonomous system
AS4493 Universidad de Sonora
Education LACNIC
Summary
Universidad de Sonora
education research legacy
The campus network of the Universidad de Sonora (UNISON), a public university headquartered in Hermosillo, Sonora, in northwestern Mexico.
What it's used for
- Campus, teaching, research, and administrative networking across the university's Hermosillo campus and its regional campuses in Sonora.
- Serving students, faculty, and university-run services.
Notable
- Institutional address space: UNISON announces the whole of
148.225.0.0/16, a legacy "Class B"-sized block — a generous holding by modern standards and a sign of an early academic allocation. - Managed through LACNIC, which took over Latin American resources from ARIN in the early 2000s.
Interesting
- The
148.xrange was widely handed out to Mexican universities and research institutions during the country's first wave of internet connectivity, so UNISON's block sits among a recognizable cluster of academic networks.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS13999 | Cable, S.A. de C.V. | 899 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 6 prefixes · 64.51K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| MX | Mexico | 6 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
AS4493- Registry name
- 4493
- Registrant
- Universidad de Sonora
- Abuse contact
- alvaro.dioni@unison.mx
- Registered
- 1995-03-08
- Last changed
- 2022-01-19
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 15 valid, 0 with no ROA
- ROAs
- 1 authorising AS4493
- ASPA
- no ASPA record
- IRR
- 100% registered · 15 of 15 announcements
- Route objects
- 10 naming AS4493
Reputation
Classification and threat
Education University, school or national research and education network.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 446 networks and 1,852 prefixes, as published 2026-10-27. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere