AS28509 — Cablemas Telecomunicaciones SA de CV

AS28509 announces 187 IPv4 prefixes covering 289,536 addresses and 38 IPv6 prefixes.

About this network

AS28509 is operated by Cablemas Telecomunicaciones SA de CV, the corporate entity behind the izzi consumer brand.

What it's used for

• The address space carries residential customer traffic, evidenced by reverse DNS entries such as 189.220.168.0-customer-chihuahua-izzi-mx and 189.220.175.255-customer-chihuahua-izzi-mx.
• The network announces 288,512 IPv4 addresses across 187 prefixes and 102 IPv6 prefixes, while maintaining only 7 observed neighbours, a ratio characteristic of an access or eyeball network rather than a transit provider.

Notable

• All available RDAP registrants for the largest prefixes are listed as Cablemas Telecomunicaciones SA de CV, aligning perfectly with the AS holder.
• The operator is widely known as izzi, a major Mexican cable and DSL provider, with the registry name reflecting its corporate legal structure.
• The inventory consists of a large block of /18 and /19 prefixes alongside numerous /20s, indicating a substantial and finely subdivided address estate.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 148.243.99.0/24
• 148.245.246.0/24
• 177.236.0.0/20
• 177.236.32.0/20
• 177.236.166.0/23
• 177.236.169.0/24
• 177.236.170.0/23
• 177.236.192.0/18
• 177.237.240.0/20
• 177.238.0.0/20
• 177.238.16.0/21
• 177.238.24.0/24
• 177.238.27.0/24
• 177.238.32.0/20
• 177.238.48.0/24
• 177.238.50.0/24
• 177.238.144.0/20
• 177.238.186.0/24
• 177.238.191.0/24
• 177.238.208.0/20
• 177.238.224.0/21
• 177.238.239.0/24
• 177.238.248.0/24
• 177.238.254.0/24
• 177.239.80.0/20
• 177.239.109.0/24
• 177.239.110.0/23
• 177.239.115.0/24
• 177.239.117.0/24
• 177.239.118.0/23
• 177.239.120.0/21
• 177.239.169.0/24
• 177.239.171.0/24
• 177.239.173.0/24
• 177.239.174.0/23
• 177.239.200.0/21
• 177.239.220.0/22
• 177.239.237.0/24
• 177.239.240.0/20
• 187.184.0.0/24
• 187.184.4.0/22
• 187.184.8.0/22
• 187.185.14.0/23
• 187.185.32.0/21
• 187.185.47.0/24
• 187.185.56.0/21
• 187.185.69.0/24
• 187.185.70.0/24
• 187.185.80.0/21
• 187.185.112.0/20
• 187.185.160.0/21
• 187.185.172.0/22
• 187.185.176.0/21
• 187.185.184.0/22
• 187.185.190.0/23
• 187.185.192.0/20
• 187.185.228.0/24
• 187.252.1.0/24
• 187.252.11.0/24
• 187.252.13.0/24
• 187.252.24.0/24
• 187.252.64.0/20
• 187.252.80.0/23
• 187.252.85.0/24
• 187.252.86.0/24
• 187.252.90.0/24
• 187.252.97.0/24
• 187.252.100.0/22
• 187.252.165.0/24
• 187.252.168.0/21
• 187.252.176.0/20
• 187.252.242.0/23
• 187.252.252.0/23
• 187.253.3.0/24
• 187.253.5.0/24
• 187.253.12.0/23
• 187.253.15.0/24
• 187.253.16.0/21
• 187.253.44.0/22
• 187.253.64.0/23
• 187.253.67.0/24
• 187.253.68.0/23
• 187.253.70.0/24
• 187.253.72.0/24
• 187.253.74.0/23
• 187.253.76.0/22
• 187.253.80.0/24
• 187.253.83.0/24
• 187.253.84.0/23
• 187.253.86.0/24
• 187.253.88.0/22
• 187.253.92.0/23
• 187.253.94.0/24
• 187.253.128.0/20
• 187.253.172.0/23
• 187.253.201.0/24
• 187.253.208.0/22
• 187.253.224.0/20
• 187.253.248.0/23
• 187.253.250.0/24

and 125 more.

Upstream networks

• AS18734 Operbes, S.A. de C.V.
• AS174 Cogent Communications, LLC
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS32098 Transtelco Inc
• AS28545 Cablemas Telecomunicaciones SA de CV

Downstream networks

• AS11888 Television Internacional, S.A. de C.V.

Adjacent networks

• AS18734 Operbes, S.A. de C.V.
• AS174 Cogent Communications, LLC
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS32098 Transtelco Inc
• AS28545 Cablemas Telecomunicaciones SA de CV
• AS11888 Television Internacional, S.A. de C.V.