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ASN Lookup Tool
AS21574 Private Use AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS21574
Organisation
Century Telecom Ltda
Name
Private Use AS
Total IPv4 Addresses
13,312
Total IPv4 Prefixes
13
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#8,137 out of 79,632
Registry
Lacnic
Registered Country
BR flagBR
Registered Country Name
Brazil
Registered Date
2001-06-07
Registration Last Change
2020-06-10
Receiving From
ASN
Organisation
AS33891
DE flagCore-Backbone GmbH
AS3356
US flagLevel 3 Parent, LLC
AS3303
CH flagSwisscom (Schweiz) AG
AS6057
UY flagAdministracion Nacional de Telecomunicaciones
AS9498
IN flagBharti Airtel Limited
Showing 5 of 60
Transit To
ASN
Organisation
AS273330
BR flagWDL SERVIÇOS DE TELECOMUNICAÇÃO LTDA
AS273783
BR flagLS PROVEDOR DE INTERNET LTDA
AS272634
BR flagBH FIBRA PROVEDOR DE INTERNET LTDA
AS272487
BR flagWAVE - FIBRA TELECOMUNICACOES LTDA
AS272479
BR flagERNESSON RODRIGUES LTDA
Showing 5 of 100
IPv4 Active Prefixes
PrefixRange FromRange To
168.227.200.0/22168.227.200.0168.227.203.255
186.249.224.0/21186.249.224.0186.249.231.255
186.249.232.0/21186.249.232.0186.249.239.255
187.1.176.0/23187.1.176.0187.1.177.255
187.1.178.0/24187.1.178.0187.1.178.255
Showing 5 of 13
IPv6 Active Prefixes
PrefixRange FromRange To
2804:23ec::/322804:23ec::2804:23ec:ffff:ffff:ffff:ffff:ffff:ffff