AS266356 PRONTO FIBRA LTDA

AS266356 - PRONTO FIBRA LTDA · registered in Brazil

IPv4 addresses4,0963 prefixes · <0.001% of announced IPv4

Rank in Brazil#890largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#15,364of 79,396 networks with IPv4

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

CountryBrazil8,771 ASNs registered there

Open AS266356 in ASN lookup Look up an IP in this network (45.234.136.1) All networks in Brazil

IPv4 prefixes

All 3 prefixes, in address order.

45.234.136.0/22
170.239.224.0/22
187.121.224.0/21

IPv6 prefixes

All 1 prefix.

2804:3690::/32

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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