asn.dev

Autonomous system

AS28556 Cablemas Telecomunicaciones SA de CV

Unclassified LACNIC

IPv4 addresses 2.82K 6 prefixes
IPv6 prefixes 2 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 access

AS28556 is operated by Cablemas Telecomunicaciones SA de CV.

What it's used for

  • The address space carries residential cable access traffic, evidenced by reverse DNS entries such as 189.220.60.64-customer-tijuana-izzi-mx and 189.221.153.64-customer-mexicali-izzi-mx.
  • The AS announces 2560 IPv4 addresses across 6 prefixes and 1 IPv6 prefix, while maintaining only 1 observed neighbour, a ratio indicative of an access network serving local subscribers rather than a transit provider.

Notable

  • All registrants for the announced prefixes are listed as Cablemas Telecomunicaciones SA de CV, matching the AS holder.
  • The inventory consists of six IPv4 blocks, including a /22 and a /23, alongside a single /48 IPv6 prefix, reflecting a modest footprint 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 CV653

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 6 prefixes · 2.82K addresses IPv6 2 prefixes

CountryNamePrefixes
MXMexico8

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
AS28556
Registry name
28556
Registrant
Cablemas Telecomunicaciones SA de CV
Abuse contact
ipmastercm@izzi.mx
Registered
2008-12-29
Last changed
2021-09-14
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
42% valid · 5 valid, 7 with no ROA
ROAs
5 authorising AS28556
ASPA
no ASPA record
IRR
83% registered · 10 of 12 announcements 2 other origin
Route objects
28 naming AS28556

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