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ASN Lookup Tool
AS1251 Private Use AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS1251
Organisation
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAUL..
Name
Private Use AS
Total IPv4 Addresses
121,088
Total IPv4 Prefixes
67
Total IPv6 Prefixes
17
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,729 out of 77,684
Registry
Lacnic
Registered Country
BR flag BR
Registered Country Name
Brazil
Registered Date
1999-11-12
Registration Last Change
2013-03-06
Receiving From

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

ASN
Organisation
AS6057
UY flagAdministracion Nacional de Telecomunicaciones
AS9498
IN flagBharti Airtel Limited
AS15830
NL flagEquinix (EMEA) Acquisition Enterprises B.V.
AS1916
BR flagRede Nacional de Ensino e Pesquisa
AS16735
BR flagALGAR TELECOM S/A
Showing 5 of 41
Transit To

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

 

ASN
Organisation
AS28571
BR flagUNIVERSIDADE DE SAO PAULO
AS53166
BR flagUNIVERSIDADE ESTADUAL PAULISTA
AS61612
BR flagDEPARTAMENTO DE CIÊNCIA E TECNOLOGIA AEROESPACIA..
AS52888
BR flagUNIVERSIDADE FEDERAL DE SAO CARLOS
AS52992
BR flagUNIVERSIDADE FEDERAL DE SAO PAULO
Showing 5 of 12
IPv4 Active Prefixes

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

Prefix143.108.0.0/21
Range From143.108.0.0
Range To143.108.7.255
Prefix143.108.8.0/22
Range From143.108.8.0
Range To143.108.11.255
Prefix143.108.12.0/24
Range From143.108.12.0
Range To143.108.12.255
Prefix143.108.13.0/24
Range From143.108.13.0
Range To143.108.13.255
Prefix143.108.14.0/23
Range From143.108.14.0
Range To143.108.15.255
Showing 5 of 67
IPv6 Active Prefixes
Prefix2001:12d8::/41
Range From2001:12d8::
Range To2001:12d8:7f:ffff:ffff:ffff:ffff:ffff
Prefix2001:12d8:80::/48
Range From2001:12d8:80::
Range To2001:12d8:80:ffff:ffff:ffff:ffff:ffff
Prefix2001:12d8:81::/48
Range From2001:12d8:81::
Range To2001:12d8:81:ffff:ffff:ffff:ffff:ffff
Prefix2001:12d8:82::/47
Range From2001:12d8:82::
Range To2001:12d8:83:ffff:ffff:ffff:ffff:ffff
Prefix2001:12d8:84::/46
Range From2001:12d8:84::
Range To2001:12d8:87:ffff:ffff:ffff:ffff:ffff
Showing 5 of 17
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.