Autonomous System

AS53166 UNIVERSIDADE ESTADUAL PAULISTA

EducationActiveBrazilLACNIC

AS53166 (AS53166) is an education network operated by UNIVERSIDADE ESTADUAL PAULISTA in Brazil, registered with LACNIC. It has 2 IPv4 prefixes with 131,072 addresses and 3 IPv6 prefixes, which makes it the 1,958th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses131,072in 2 prefixes
IPv6 prefixes3≈ 1.6 × 10²⁹ addresses
Size rank#1,958of 82,200 active ASNs
Abuser scoreVery Low0.05% of its addresses flagged · method

Details

OrganizationUNIVERSIDADE ESTADUAL PAULISTA
AS nameAS53166
Websiteunesp.br
Country Brazil (BR)
Network typeEducation
RegistryLACNIC
Abuse contactmarcos.costa@unesp.br
Registered20100716
Last updated20260909

IPv4 prefixes

2 prefixes · 131,072 addresses
NetworkAddressesFirst – last address
186.217.0.0/1665,536186.217.0.0 – 186.217.255.255
200.145.0.0/1665,536200.145.0.0 – 200.145.255.255

IPv6 prefixes

3 prefixes
  • 2801:88::/32
  • 2801:88::/33
  • 2801:88:8000::/33

Query AS53166 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS53166&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS53166, with or without a key:

curl "https://api.ipapi.is/?q=186.217.0.1"

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