AS28670 — CST SERVICOS DE INFORMATICA E CALL CENTER LTDA.

Network type: residential

AS28670 announces 3 IPv4 prefixes covering 5,376 addresses and 1 IPv6 prefixes.

About this network

AS28670 is operated by CST-REDEL SERVICOS DE TELECOMUNICACOES LTDA., known commercially as Redel Internet.

What it's used for

• The address space is registered under netnames 87009, 250560, and 555756, all attributed to CST-REDEL SERVIÇOS DE TELECOMUNICAÇÕES LTDA.
• The AS announces 5376 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 24 observed neighbours; this ratio suggests a regional access provider rather than a transit hub.

Notable

• All RDAP registrants for the announced prefixes match the AS holder, CST-REDEL SERVIÇOS DE TELECOMUNICAÇÕES LTDA.
• PeeringDB identifies the operator as a Cable/DSL/ISP with regional scope, consistent with the Brazilian telecommunications context.
• The inventory includes a /20, a /22, and a /24 in IPv4, alongside a single /32 in IPv6.

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

Announced prefixes

• 131.72.146.0/24
• 138.94.220.0/22
• 189.8.96.0/20
• 2804:1c24::/32

Upstream networks

• AS14840 BR.Digital Telecom
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS

Downstream networks

• AS270765 VIVA PIXEL AGENCIA DIGITAL
• AS272212 ILUMINET INTERNET
• AS61571 Metro Tecnologia

Adjacent networks

• AS14840 BR.Digital Telecom
• AS6939 Hurricane Electric LLC
• AS270765 VIVA PIXEL AGENCIA DIGITAL
• AS272212 ILUMINET INTERNET
• AS61571 Metro Tecnologia
• AS53062 GGNET TELECOMUNICACOES LTDA
• AS16735 ALGAR TELECOM S/A
• AS24482 SG.GS

Routing security

• RPKI: 4 valid, 0 invalid and 0 not-found announcements; 4 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 9 route objects.
• Listed in as-sets: AS-267613, AS-272212, AS-28670, AS-53062-CUSTOMERS, AS-53062-CUSTOMERS, AS-8167-BGP-CUSTOMERS, AS-8167_CUSTOMERS, AS-CTBC-CUSTOMERS33, AS-CTBC-TOOLS-5, AS-HWNG-DOWNSTREAMS, AS-ROCKETNETWORK-TOOLS-2, AS-UOL-TRANSIT, AS14840:AS-CUSTOMERS-05.

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• IX.br (PTT.br) Fortaleza — Fortaleza, Brazil
• IX.br (PTT.br) Florianópolis — Florianópolis, Brazil