Autonomous system
AS21520 Instituto Tecnologico Autonomo de MexicoITAM
Unclassified RIPE
Summary
Instituto Tecnologico Autonomo de Mexico
education university business network
The AS handle Instituto Tecnologico Autonomo de MexicoITAM is held by Instituto Tecnologico Autonomo de Mexico.
What it's used for
- The address space carries the institutional network of the Instituto Tecnologico Autonomo de Mexico, a private university in Mexico City, as indicated by the registrant name across all prefixes.
- The AS announces 20992 IPv4 addresses across 22 prefixes with only 2 observed neighbours, a ratio consistent with an internal corporate or educational estate rather than a transit or access provider.
Notable
- All RDAP registrants for the largest prefixes match the announcer, consistently listing Instituto Tecnologico Autonomo de Mexico(ITAM) as the holder.
- The inventory consists of a single /16 block (148.205.0.0/16) subdivided into 22 smaller prefixes, reflecting site-by-site segmentation typical of a large institutional network.
- No IPv6 prefixes are announced in the inventory.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 22 prefixes · 20.99K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| MX | Mexico | 22 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS21520- Registry name
- 21520
- Registrant
- Instituto Tecnologico Autonomo de Mexico(ITAM)
- Abuse contact
- uciel.fragoso@itam.mx
- Registered
- 2001-05-15
- Last changed
- 2004-03-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 23 with no ROA
- ROAs
- 0 authorising AS21520
- ASPA
- no ASPA record
- IRR
- 100% registered · 23 of 23 announcements
- Route objects
- 26 naming AS21520
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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