AS213920 FONSECA FONSECA ALVES TECNOLOGIA LTDA

FONSECA FONSECA ALVES TECNOLOGIA LTDA · registered in Brazil

IPv4 addresses1,5366 prefixes · <0.001% of announced IPv4

Rank in Brazil#2,102largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#26,139of 79,396 networks with IPv4

IPv616 x /481 prefixes

CountryBrazil8,771 ASNs registered there

Open AS213920 in ASN lookup Look up an IP in this network (143.20.0.1) All networks in Brazil

IPv4 prefixes

All 6 prefixes, in address order.

143.20.0.0/24
151.242.25.0/24
151.242.142.0/24
178.132.198.0/24
185.219.189.0/24
185.225.22.0/24

IPv6 prefixes

All 1 prefix.

2a0c:b641:30::/44

Similar-sized networks in Brazil

ASNNameIPv4 addresses

AS61808#2099 AS61808 - CONTINUY SERVICOS EM TECNOLOGIA DA INFORMACAO LTDA1,536

AS262672#2100 AS262672 - Digirati Informatica, servicos e telecomunicacoes1,536

AS270519#2101 AS270519 - HILINK COMUNICACOES1,536

AS262728#2103 AS262728 - ELETRODATA LTDA1,536

AS52998#2104 AS52998 - Fundacao Assis Gurgacz1,536

AS53007#2105 AS53007 - Volvo do Brasil Veiculos Ltda.1,536

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources