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ASN Lookup Tool
AS28571 Private Use AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS28571
Organisation
UNIVERSIDADE DE SAO PAULO
Name
Private Use AS
Total IPv4 Addresses
163,072
Total IPv4 Prefixes
106
Total IPv6 Prefixes
81
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,306 out of 79,103
Registry
Lacnic
Registered Country
BR flagBR
Registered Country Name
Brazil
Registered Date
2007-12-19
Registration Last Change
2015-11-12
Receiving From

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

ASN
Organisation
AS10429
BR flagTELEFÔNICA BRASIL S.A
AS18881
BR flagTELEFÔNICA BRASIL S.A
AS6057
UY flagAdministracion Nacional de Telecomunicaciones
AS1916
BR flagRede Nacional de Ensino e Pesquisa
AS6939
US flagHurricane Electric LLC
Showing 5 of 24
IPv4 Active Prefixes

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

PrefixRange FromRange To
143.107.0.0/23143.107.0.0143.107.1.255
143.107.2.0/24143.107.2.0143.107.2.255
143.107.3.0/24143.107.3.0143.107.3.255
143.107.4.0/22143.107.4.0143.107.7.255
143.107.8.0/24143.107.8.0143.107.8.255
Showing 5 of 106
IPv6 Active Prefixes
PrefixRange FromRange To
2001:12d0::/482001:12d0::2001:12d0:0:ffff:ffff:ffff:ffff:ffff
2001:12d0:1::/482001:12d0:1::2001:12d0:1:ffff:ffff:ffff:ffff:ffff
2001:12d0:2::/472001:12d0:2::2001:12d0:3:ffff:ffff:ffff:ffff:ffff
2001:12d0:4::/462001:12d0:4::2001:12d0:7:ffff:ffff:ffff:ffff:ffff
2001:12d0:8::/452001:12d0:8::2001:12d0:f:ffff:ffff:ffff:ffff:ffff
Showing 5 of 81