AS53121 — AS53121 - Infornet Consultoria e Assessoria Ltda

AS53121 announces 2 IPv4 prefixes covering 5,120 addresses and 1 IPv6 prefixes.

About this network

AS53121 is operated by Infornet Consultoria e Assessoria Ltda.

What it's used for

• The address space carries residential subscriber traffic, evidenced by reverse DNS entries such as dynamic-170-81-181-0.sejainfornet.com.br and dynamic-170-81-182-254.sejainfornet.com.br.
• The AS announces 5,120 IPv4 addresses across 2 prefixes and 5 IPv6 prefixes, while maintaining 36 observed neighbours; this ratio indicates an access network providing last-mile connectivity rather than transit.
• Traffic from this AS consists of end-user internet access for residential customers in Brazil, consistent with the operator's classification as a regional Cable/DSL/ISP.

Notable

• Registrants for both announced IPv4 prefixes (187.111.128.0/20 and 170.81.180.0/22) match the AS holder, Infornet Consultoria e Assessoria Ltda.
• The address inventory is composed of two distinct IPv4 blocks and a set of IPv6 prefixes under the 2804:3784::/33 range, reflecting a standard regional ISP allocation.

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

Announced prefixes

• 170.81.180.0/22
• 187.111.128.0/20
• 2804:3784::/32

Upstream networks

• AS61568 ALOO TELECOM - FSF TECNOLOGIA SA
• AS52873 Softdados Telecomunicacoes
• AS6939 Hurricane Electric LLC
• AS7738 V tal
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS35280 F5 Networks SARL

Downstream networks

• AS61601 Friends Provedor de Internet LTDA
• AS271347 JHONATA DA SILVA MATOS ME
• AS268718 TOTAL NET PROVEDOR DE INTERNET LTDA
• AS273674 VIVA TELECOMUNICACOES & PROVEDOR DE INTERNET LTDA
• AS268365 ELETROTEL COMERCIO, SERVICO E PROVEDOR LTDA
• AS263508 SIMNET TELECOMUNICACOES LTDA
• AS269146 NOKE TELECOMUNICACOES LTDA
• AS269396 UNIR TELECOM

Adjacent networks

• AS61568 ALOO TELECOM - FSF TECNOLOGIA SA
• AS52873 Softdados Telecomunicacoes
• AS7738 V tal
• AS61601 Friends Provedor de Internet LTDA
• AS269396 UNIR TELECOM
• AS271347 JHONATA DA SILVA MATOS ME
• AS6939 Hurricane Electric LLC
• AS268718 TOTAL NET PROVEDOR DE INTERNET LTDA
• AS272277 Dupla - Net
• AS268365 ELETROTEL COMERCIO, SERVICO E PROVEDOR LTDA
• AS273674 VIVA TELECOMUNICACOES & PROVEDOR DE INTERNET LTDA
• AS263508 SIMNET TELECOMUNICACOES LTDA
• AS269146 NOKE TELECOMUNICACOES LTDA
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS35280 F5 Networks SARL

Routing security

• RPKI: 0 valid, 0 invalid and 11 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 82% of announcements registered; 535 route objects.
• Listed in as-sets: AS-1TELECOM-CUSTOMERS01, AS-7738-BGP-CUSTOMERS, AS-7738_CUSTOMERS, AS-CTBC-CUSTOMERS113, AS-CTBC-TOOLS-9, AS-E1-AUTOMATION-CUSTOMER, AS-EMBRATELNET, AS-FORTEL-CUSTOMERS, AS-HUGENET-CUSTOMERS, AS-HURRICANE, AS-HURRICANEV6, AS-ITSBRASIL-CUSTOMER, AS-IVITELECOM-INDIRECT-CLIENTS, AS-MOB-CUSTOMER-AS61832, AS-ROCKETNETWORK-CUSTOMERS, AS-WEBFOCO-TRANSIT, AS264409:AS-CONE, AS274830:AS-CUSTOMERS, AS3491:AS-CUSTOMERS-NA, AS52873:AS-API, AS52873:AS-TRANSIT, AS61568:AS-ALOO-TELECOM, AS61568:AS-ALOO-TELECOM-DDOS, AS61568:AS-TESTE-AL, AS61568:AS-TESTE-ALOO.

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• IX.br (PTT.br) Fortaleza — Fortaleza, Brazil
• IX.br (PTT.br) Salvador — Salvador, Brazil
• IX.br (PTT.br) Feira de Santana — Feira De Santana, Brazil