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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
13101
Total IPv4 Prefixes
8
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#8,172 out of 77,276
Registry
Lacnic
Registered Country
BR flag BR
Registered Country Name
Brazil
Registered Date
2001-06-07
Registration Last Change
2020-06-10
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS41805
IQ flagSAWAD LAND for Information Technology Ltd
AS328832
ZA flagNetwork Platforms (PTY) LTD
AS56662
PL flagMarcin Gondek
AS3356
US flagLevel 3 Parent, LLC
AS174
US flagCogent Communications
Showing 5 of 82
Transit To

The list of active Autonomous Systems (ASs) which receive traffic from that ASN.

 

ASN
Organisation
AS273783
BR flagLS PROVEDOR DE INTERNET LTDA
AS273714
BR flagPOINT NET TELECOMUNICAÇÃO LTDA
AS272628
BR flagFTI TELECOM SERVIÇOS DE COMUNICAÇÕES LTDA
AS272201
BR flagACSNET TELECOM
AS272495
BR flagStar Telecomunicações LTDA
Showing 5 of 102
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix168.227.200.0/22
Range From168.227.200.0
Range To168.227.203.255
Prefix186.249.224.0/20
Range From186.249.224.0
Range To186.249.239.255
Prefix187.1.176.0/23
Range From187.1.176.0
Range To187.1.177.255
Prefix187.1.178.0/24
Range From187.1.178.0
Range To187.1.178.255
Prefix187.1.179.0/24
Range From187.1.179.0
Range To187.1.179.255
Showing 5 of 8
IPv6 Active Prefixes
Prefix2804:23ec::/32
Range From2804:23ec::
Range To2804:23ec:ffff:ffff:ffff:ffff:ffff:ffff
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.