AS53166 UNIVERSIDADE ESTADUAL PAULISTA

Brazil AS53166 LACNIC 2 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

131,072

IPv6 /48 networks

65,536

RPKI

5 valid0 no ROA

Peers and downstreams

Holder

AS name: AS53166
Description: UNIVERSIDADE ESTADUAL PAULISTA
Organisation: UNIVERSIDADE ESTADUAL PAULISTA
Abuse contact: Not published
Assigned: 2010-07-15
Registered: 2010-07-16
Record last changed: 2026-09-09 21:27 UTC

186.217.0.0/16 200.145.0.0/16

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 75/100

pass	Prefixes covered by valid ROAs 5 of 5 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 3 IPv6 prefixes.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
fail	Working abuse contact No abuse contact is published in the registry.	0/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
pass	Registry record maintained Last changed 2026-09-09.	5/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/53166"><img src="https://ip-fd.net/badge/asn/53166/health.svg" alt="AS53166 network health on IP-FD.net"></a>

Markdown

[![AS53166 network health](https://ip-fd.net/badge/asn/53166/health.svg)](https://ip-fd.net/asn/53166)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS53166
as-name:        ASN53166
handle:         53166
registrant:     48031918000124 (UNIVERSIDADE ESTADUAL PAULISTA)
administrative,abuse:MVFCO26 (Marcos Venicius da Fonseca Costa) <marcos.costa@unesp.br>
registration:   2010-07-16T12:54:49Z
last changed:   2026-09-09T21:27:55Z
source:         LACNIC (RDAP)

Routing data

Updated 19 h ago

Registry record

Fetched 19 h ago from LACNIC RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/53166

const res = await fetch('https://ip-fd.net/api/v1/asn/53166', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/53166', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/53166');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/53166", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Works without a key at a lower rate. Get a free key.

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