AS28203 Webcenter Sist Prest de Servicos de Informatica

AS28203 - Webcenter Sist Prest de Servicos de Informatica · registered in Brazil

IPv4 addresses3,8404 prefixes · <0.001% of announced IPv4

Rank in Brazil#1,015largest network in BR by IPv4 space, of 7,969 · <0.01% of BR

Rank worldwide#16,755of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryBrazil8,771 ASNs registered there

Open AS28203 in ASN lookup Look up an IP in this network (189.91.32.1) All networks in Brazil

IPv4 prefixes

All 4 prefixes, in address order.

189.91.32.0/23
189.91.34.0/24
189.91.36.0/22
189.91.40.0/21

Similar-sized networks in Brazil

ASNNameIPv4 addresses

AS53173#1012 AS53173 - Sobral Telecomunicacoes Ltda3,840

AS272710#1013 AS272710 - FIBRASIL INFRAESTRUTURA E FIBRA OTICA S.A.3,840

AS61666#1014 AS61666 - GLOBOINFO LTDA3,840

AS52533#1016 AS52533 - TRADITIO COMPANHIA DE SEGUROS3,840

AS28296#1017 AS28296 - Acessa Telecomunicacoes Ltda3,584

AS52748#1018 AS52748 - Seitel - Seixas Telecomunicacoes3,584

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