AS274743 FASTWEB TELECOMUNICACOES

AS274743 - FASTWEB TELECOMUNICACOES · registered in Brazil

IPv4 addresses5121 prefixes · <0.001% of announced IPv4

Rank in Brazil#7,176largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#47,283of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryBrazil8,771 ASNs registered there

Open AS274743 in ASN lookup Look up an IP in this network (186.251.212.1) All networks in Brazil

IPv4 prefixes

All 1 prefix, in address order.

186.251.212.0/23

IPv6 prefixes

All 1 prefix.

2804:92ec::/32

Similar-sized networks in Brazil

ASNNameIPv4 addresses

AS274729#7173 AS274729 - NORTECOM TELECOMUNICACOES LTDA512

AS274730#7174 AS274730 - AUDAKS TECNOLOGIA LTDA512

AS274734#7175 AS274734 - LNS - Linux and Network Solutions LTDA512

AS274748#7177 AS274748 - REGO & VAZ LTDA512

AS274750#7178 AS274750 - RNET SERVICOS DE INTERNET512

AS274765#7179 AS274765 - NETLIFE TECNOLOGIA EIRELI512

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