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AS28573
AS28573 Claro NXT Telecomunicacoes Ltda
AS28573 - Claro NXT Telecomunicacoes Ltda · registered in Brazil
IPv4 addresses 9,963,776 690 prefixes · 0.318% of announced IPv4
Rank in Brazil #2 largest network in BR by IPv4 space, of 7,969 · 13.26% of BR
Rank worldwide #44 of 79,396 networks with IPv4
IPv6 32,805 x /48 1,118 prefixes
Country Brazil 8,771 ASNs registered there
Other ASNs named Claro NXT Telecomunicacoes Ltda
1 other network uses the same organisation name; together with AS28573 they announce 9,967,872 IPv4 addresses.
ASN Name IPv4 addresses
AS28351 AS28351 - Claro NXT Telecomunicacoes Ltda BR 4,096
Similar-sized networks in Brazil
ASN Name IPv4 addresses
AS26599 #1 AS26599 - TELEFONICA BRASIL S.A10,786,304
AS26615 #3 AS26615 - TIM S/A8,865,024
AS4230 #4 AS4230 - CLARO S.A.5,155,584
AS27699 #5 AS27699 - TELEFONICA BRASIL S.A4,643,840
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