AS27818 — Cotesma

Network type: residential

AS27818 announces 4 IPv4 prefixes covering 17,664 addresses and 7 IPv6 prefixes.

About this network

AS27818 is operated by Cotesma, a telecommunications cooperative in San Martín de los Andes.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS entries like host-cotesma-114-151-254.smandes.com.ar.
• The network announces 17,664 IPv4 addresses across 4 prefixes and 9 IPv6 prefixes, with only 4 observed neighbours, indicating a local access provider rather than a transit hub.

Notable

• Registrants for the available prefixes (181.114.128.0/19, 131.161.152.0/22, 200.47.43.0/24) all list Cotesma, matching the AS holder.
• The address inventory consists of four distinct IPv4 blocks, including a /19 and a /24, alongside a substantial IPv6 allocation under the 2803:3380::/32 range.

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

Announced prefixes

• 131.161.152.0/22
• 181.114.128.0/19
• 200.47.43.0/24
• 201.220.160.0/19
• 2803:3380:1003::/48
• 2803:3380:1100::/40
• 2803:3380:1200::/40
• 2803:3380:2000::/35
• 2803:3380:4000::/34
• 2803:3380:8000::/33
• 2803:3380:fe00::/39

Upstream networks

• AS7049 Silica Networks Argentina S.A.
• AS52361 ARSAT - Empresa Argentina de Soluciones Satelitales S.A.
• AS22927 Telefonica de Argentina
• AS52294 CABASE Camara Arg de Base de Datos y Serv en Linea

Adjacent networks

• AS7049 Silica Networks Argentina S.A.
• AS52361 ARSAT - Empresa Argentina de Soluciones Satelitales S.A.
• AS22927 Telefonica de Argentina
• AS52294 CABASE Camara Arg de Base de Datos y Serv en Linea

Internet exchanges

• CABASE IXP Neuquén — Neuquén, Argentina