Autonomous system
AS13679 Centros Culturales de Mexico, A.C.
Unclassified RIPE
Summary
Centros Culturales de Mexico
education research business
A cultural and educational body holding legacy address space, with netnames that are just the ranges written out.
What it's used for
- A Mexican cultural and educational organisation's network. 768 addresses across three IPv4 prefixes, the IPv6 block
2801:f0:20::/48, and three observed BGP neighbours.
Notable
- All three blocks are registered to the organisation itself.
- Each netname is that block's first and last address with a dash between them, rather than a name.
- Two of the blocks sit in
192.100, space handed out long before the current allocation system. - Nine addresses were queried for reverse DNS and none returned a name.
Interesting
- The regional registry that serves this part of the world fills the netname with the range itself, so the field that elsewhere carries brands, typos and dead company names carries no information at all here. It is a different answer to the same problem, and it never goes stale.
- An educational body with legacy space, its own AS number and three upstreams is a survivor of the period when universities and cultural institutes were among the few organisations connected at all. The blocks are small because nobody expected them to need more.
- Silence in reverse DNS across all three ranges is unusual for an institution, which usually names its mail and web hosts if nothing else.
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 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 768 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| MX | Mexico | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS13679- Registry name
- 13679
- Registrant
- Centros Culturales de Mexico, A.C.
- Abuse contact
- chavezp@up.edu.mx
- Registered
- 1999-07-27
- Last changed
- 2009-01-29
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS13679
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 9 naming AS13679
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: 442 networks and 1,784 prefixes, as published 2026-10-19. 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