AS53088 — AS53088 - FORNET COMUNICACOES LTDA

Network type: residential

AS53088 announces 2 IPv4 prefixes covering 8,192 addresses and 1 IPv6 prefixes.

About this network

The AS handle FORNET COMUNICACOES LTDA is held by ForNet.

What it's used for

• The address space carries residential subscriber traffic, evidenced by reverse DNS entries such as cliente-187-33-219-254.fornet.com.br and cliente-177-21-85-254.fornet.com.br.
• The network announces 8,192 IPv4 addresses across 6 prefixes and 23 IPv6 prefixes, while maintaining only 3 observed neighbours, a ratio characteristic of an access network rather than a transit provider.
• Traffic from this AS consists of cable and DSL subscriber eyeballs, consistent with ForNet's operation as a regional ISP in South America.

Notable

• Registrants for the available prefixes consistently identify FORNET COMUNICACOES LTDA, matching the AS holder.
• The IPv4 inventory is subdivided into multiple smaller blocks within the 177.21.80.0/21 and 177.21.92.0/22 ranges, alongside a larger /20 block.

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

Announced prefixes

• 177.21.80.0/20
• 187.33.208.0/20
• 2804:360::/32

Upstream networks

• AS262355 VSX Networks

Downstream networks

• AS270351 AC Oliveira Comunicacao Ltda
• AS265060 Amires Garcia Maroldi ME

Adjacent networks

• AS262355 VSX Networks
• AS270351 AC Oliveira Comunicacao Ltda
• AS265060 Amires Garcia Maroldi ME

Routing security

• RPKI: 16 valid, 0 invalid and 0 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 19% of announcements registered; 4 route objects.
• Listed in as-sets: AS-267613, AS-28124, AS-53115:AS-CUSTOMERS, AS-AS393742, AS-CTBC-CUSTOMERS100, AS-CTBC-CUSTOMERS3, AS-CTBC-TOOLS-4, AS-DURAND1-CUSTOMER, AS-E1-AUTOMATION-CUSTOMER, AS-FLYS, AS-FORTE-TELECOM-CUSTOMER-RJ, AS-HURRICANEV6, AS-UFINET-LATAM-BRASIL, AS-VSX, AS28146:AS-CLIENTS, AS3491:AS-CUSTOMERS-NA, AS53013:AS-CONE.

Internet exchanges

• IX.br (PTT.br) Maringá — Maringá, Brazil