AS19889 — Cooperativa Telefonica Del Viso

AS19889 announces 5 IPv4 prefixes covering 40,960 addresses and 1 IPv6 prefixes.

About this network

AS19889 is operated by Cooperativa Telefonica Del Viso, commonly known as Telviso.

What it's used for

• The address space carries residential broadband access, evidenced by reverse DNS entries such as 254.151.3.190.dsl.dynamic.telviso.net.ar and 254.215.57.190.dsl.dynamic.telviso.net.ar.
• The AS announces 40960 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, while maintaining only 8 observed neighbours, a ratio indicative of an access network rather than a transit provider.

Notable

• All available registrants for the announced prefixes are listed as Cooperativa Telefonica Del Viso, matching the AS holder.
• The operator is identified in secondary sources as a regional Cable/DSL/ISP in Argentina.
• The inventory consists of five /19 IPv4 blocks and a single /32 IPv6 prefix, representing a substantial but focused residential allocation.

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

Announced prefixes

• 161.22.0.0/19
• 181.118.224.0/19
• 190.3.128.0/19
• 190.57.192.0/19
• 200.85.96.0/19
• 2800:6d0::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS16814 NSS S.A.

Downstream networks

• AS52491 Cooperativa de Servicios Publicos de Fatima Ltda.
• AS263768 EUROSAT S.A.
• AS269881 CAMARA DE COOPERATIVAS DE TELECOMUNICACIONES (CATEL)

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS16814 NSS S.A.
• AS52491 Cooperativa de Servicios Publicos de Fatima Ltda.
• AS263768 EUROSAT S.A.
• AS269881 CAMARA DE COOPERATIVAS DE TELECOMUNICACIONES (CATEL)