asn.dev

Autonomous system

AS28512 Cablemas Telecomunicaciones SA de CV

Unclassified ARIN

IPv4 addresses 91.14K 47 prefixes
IPv6 prefixes 22 counted as prefixes, not addresses
Countries 1 mostly MX
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Cablemas Telecomunicaciones

Mexico · AI-generated

cable residential mexico isp

AS28512 is operated by Cablemas Telecomunicaciones SA de CV.

What it's used for

  • The address space is registered under the netnames 187.252.32.0 - 187.252.63.255, 200.79.224.0 - 200.79.255.255, and 177.237.0.0 - 177.237.127.255, all attributed to Cablemas Telecomunicaciones SA de CV.
  • With 91136 IPv4 addresses announced across 47 prefixes and only 1 observed neighbour, the ratio indicates a local access network rather than a transit provider.

Notable

  • All registrants in the RDAP sample match the announcer, consistently listing Cablemas Telecomunicaciones SA de CV.
  • The inventory consists of multiple /19, /20, and /21 blocks, reflecting a subdivided address estate typical of a regional cable operator.

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

Full topology · Graph

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.

ASNetworkPaths seen
AS28545Cablemas Telecomunicaciones SA de CV4,730

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 47 prefixes · 91.14K addresses IPv6 22 prefixes

CountryNamePrefixes
MXMexico69

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS28512
Registry name
28512
Registrant
Cablemas Telecomunicaciones SA de CV
Abuse contact
ipmastercm@izzi.mx
Registered
2005-08-02
Last changed
2021-09-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
72% valid · 72 valid, 28 with no ROA
ROAs
31 authorising AS28512
ASPA
no ASPA record
IRR
100% registered · 100 of 100 announcements
Route objects
102 naming AS28512

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 1,778 prefixes, as published 2026-10-20. 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

Cross-check