AS21574 Century Telecom Ltda

AS21574 - Century Telecom Ltda · registered in Brazil

IPv4 addresses13,3128 prefixes · <0.001% of announced IPv4

Rank in Brazil#212largest network in BR by IPv4 space, of 7,969 · 0.02% of BR

Rank worldwide#7,775of 79,396 networks with IPv4

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

CountryBrazil8,771 ASNs registered there

Open AS21574 in ASN lookup Look up an IP in this network (168.227.200.1) All networks in Brazil

IPv4 prefixes

All 8 prefixes, in address order.

168.227.200.0/22
186.249.224.0/20
187.1.176.0/23
187.1.178.0/24
187.1.179.0/24
187.1.180.0/22
187.1.184.0/21
200.169.0.0/20

IPv6 prefixes

All 1 prefix.

2804:23ec::/32

Similar-sized networks in Brazil

ASNNameIPv4 addresses

AS28299#209 AS28299 - LWSA S/A14,080

AS11338#210 AS11338 - ZAAZ PROVEDOR DE INTERNET E TELECOMUNICACOES LTDA13,568

AS28130#211 AS28130 - CERTTO TELECOMUNICACOES LTDA EPP.13,312

AS28309#213 AS28309 - WGO MULTIMIDIA LTDA13,312

AS28334#214 AS28334 - PROCESS SOLUTIONS TECNOLOGIA DA INFORMACAO LTDA13,312

AS28584#215 AS28584 - Defferrari Solucoes em Internet Ltda13,312

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