AS28251 Cizol Com. e Servicos de Equip de Informatica Ltda

AS28251 - Cizol Com. e Servicos de Equip de Informatica Ltda · registered in Brazil

IPv4 addresses4,0964 prefixes · <0.001% of announced IPv4

Rank in Brazil#946largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#15,895of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryBrazil8,771 ASNs registered there

Open AS28251 in ASN lookup Look up an IP in this network (187.1.144.1) All networks in Brazil

IPv4 prefixes

All 4 prefixes, in address order.

187.1.144.0/21
187.1.152.0/23
187.1.154.0/23
187.1.156.0/22

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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