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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
13,304
Total IPv4 Prefixes
8
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#8,171 out of 79,132
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
AS56662
PL flagMarcin Gondek
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications, LLC
AS7552
VN flagViettel Group Internet Exchange and Service Prov..
Showing 5 of 76
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
AS272628
BR flagFTI TELECOM SERVIÇOS DE COMUNICAÇÕES LTDA
AS272487
BR flagWAVE - FIBRA TELECOMUNICACOES LTDA
Showing 5 of 105
IPv4 Active Prefixes
PrefixRange FromRange To
168.227.200.0/22168.227.200.0168.227.203.255
186.249.224.0/20186.249.224.0186.249.239.255
187.1.176.0/23187.1.176.0187.1.177.255
187.1.178.0/24187.1.178.0187.1.178.255
187.1.179.0/24187.1.179.0187.1.179.255
Showing 5 of 8
IPv6 Active Prefixes
PrefixRange FromRange To
2804:23ec::/322804:23ec::2804:23ec:ffff:ffff:ffff:ffff:ffff:ffff