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ASN Lookup Tool
AS28121 Private Use AS

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS28121
Organisation
BB TECNOLOGIA E SERVICOS S/A
Name
Private Use AS
Total IPv4 Addresses
4096
Total IPv4 Prefixes
11
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#16,375 out of 77,421
Registry
Lacnic
Registered Country
BR flag BR
Registered Country Name
Brazil
Registered Date
2008-12-02
Registration Last Change
2021-05-06
Receiving From

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

ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS4230
BR flagCLARO S.A.
AS3549
US flagLevel 3 Parent, LLC
AS8167
BR flagV tal
IPv4 Active Prefixes

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

Prefix187.18.16.0/22
Range From187.18.16.0
Range To187.18.19.255
Prefix187.18.20.0/24
Range From187.18.20.0
Range To187.18.20.255
Prefix187.18.21.0/24
Range From187.18.21.0
Range To187.18.21.255
Prefix187.18.22.0/23
Range From187.18.22.0
Range To187.18.23.255
Prefix187.18.24.0/24
Range From187.18.24.0
Range To187.18.24.255
Showing 5 of 11
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.