AS52251 — AS52251 - NORTECH

AS52251 announces 5 IPv4 prefixes covering 32,768 addresses and 1 IPv6 prefixes.

About this network

NORTECH is the AS handle for Nortech, an Argentine cable and DSL internet service provider.

What it's used for

• The address space carries residential and business subscriber traffic, evidenced by reverse DNS records pointing to nortech.com.ar (e.g., 181.225.215.254.nortech.com.ar).
• The network announces 32,768 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, while maintaining 16 observed routing neighbours; this ratio of address space to peering partners indicates an access network rather than a transit provider.
• Traffic from this AS consists of end-user internet access for cable and DSL subscribers in Argentina.

Notable

• All registrants for the announced prefixes are listed as NORTECH, consistent with the AS holder.
• The address inventory is composed of five distinct IPv4 blocks, including a /18 and a /19, alongside smaller /20 and /21 allocations.

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

Announced prefixes

• 181.225.192.0/19
• 186.0.136.0/21
• 186.1.224.0/20
• 186.1.240.0/21
• 190.181.64.0/18
• 2803:5080::/32

Upstream networks

• AS52468 UFINET PANAMA S.A.
• AS266725 SOLUTION LAN S.A
• AS6939 Hurricane Electric LLC
• AS7195 EDGEUNO S.A.S

Downstream networks

• AS52426 I-SUR WISP S.R.L.
• AS262196 Interface
• AS267856 ASOCIACION PARA EL FORTALECIMIENTO COMUNITARIO
• AS264619 Wireless Provider
• AS271815 GUSTAVO JAVIER VULTAGGIO
• AS269890 NETIFOX S.R.L
• AS263737 Grupo Fullsat SRL
• AS264669 TECNOCOMP S.R.L.
• AS266750 CONECTADOZ S.R.L.
• AS263729 Pedraza Luis Eduardo (DANEZ)
• AS271973 MESTRE CORDERO ALBERTO JORGE (INTELINET ARGENTINA)

Adjacent networks

• AS52468 UFINET PANAMA S.A.
• AS266725 SOLUTION LAN S.A
• AS6939 Hurricane Electric LLC
• AS7195 EDGEUNO S.A.S
• AS52426 I-SUR WISP S.R.L.
• AS262196 Interface
• AS264619 Wireless Provider
• AS267856 ASOCIACION PARA EL FORTALECIMIENTO COMUNITARIO
• AS271815 GUSTAVO JAVIER VULTAGGIO
• AS269890 NETIFOX S.R.L
• AS263737 Grupo Fullsat SRL
• AS264669 TECNOCOMP S.R.L.
• AS266750 CONECTADOZ S.R.L.
• AS263729 Pedraza Luis Eduardo (DANEZ)
• AS271973 MESTRE CORDERO ALBERTO JORGE (INTELINET ARGENTINA)

Routing security

• RPKI: 196 valid, 0 invalid and 1 not-found announcements; 133 ROAs.
• ASPA: none published.
• IRR: 98% of announcements registered; 203 route objects.
• Listed in as-sets: AS-18747, AS-267613, AS-28124, AS-28513, AS-CTBC-TOOLS-10, AS-DURAND1-CUSTOMER, AS-E1-AUTOMATION-CUSTOMER, AS-EMBRATELNET, AS-FLYS, AS-GNT-CUSTOMERS, AS-ITXCHILE, AS-OPENX-CUSTOMERS, AS-STORMWALL-SET, AS-STORMWALL-SET, AS-UFLA-TRANSCUST, AS11014:AS-CUSTOMERS, AS262196:AS-INTERFACENET, AS263702:AS-CUSTOMERS, AS263702:AS-TRANSIT, AS264619:AS-NORTECH, AS266725:AS-SAWERIN, AS27964:AS-NORTECH, AS3491:AS-CUSTOMERS-NA, AS52251:AS-NORTECH, AS52320:AS-CUSTOMERS.