Autonomous system
AS7173 Instituto Nacional de Astrofisica, Optica y Electronica
Education LACNIC
Summary
Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE)
education research legacy
INAOE is Mexico's national institute for astrophysics, optics and electronics, based at Tonantzintla in the state of Puebla. It is a public research centre that also runs graduate programmes.
What it's used for
- Campus and research networking for the institute: laboratories, observatories, computing facilities and its graduate school.
- Announces a handful of
/24s across192.100.172.0/24,148.207.xand200.23.5.0/24, plus an IPv6/48— a small footprint for a specialised institute.
Notable
- Reverse DNS resolves under
inaoep.mx(for exampletonali.inaoep.mx, named for Tonantzintla), confirming this is the institute's own address space and not a shared national-network allocation. - INAOE is best known internationally for its role in the Large Millimeter Telescope on Sierra Negra, an instrument it operates jointly with the University of Massachusetts — the kind of project that gives a research institute a genuine need for its own network.
Interesting
- The
192.100.172.0/24block is old, sequential-era space from before Mexico's address allocations moved under LACNIC, which is part of why a small research institute holds a four-digit AS number.
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 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS8151 | UNINET | 270 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 1.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| MX | Mexico | 5 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
AS7173- Registry name
- 7173
- Registrant
- Instituto Nacional de Astrofisica, Optica y Electronica
- Abuse contact
- jfajardo@inaoep.mx
- Registered
- 1996-09-27
- Last changed
- 2010-03-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS7173
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 5 announcements 4 other origin
- Route objects
- 1 naming AS7173
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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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