AS37501 University of the Free State

South Africa UOFS AFRINIC 11 IPv4 prefixes 2 IPv6 prefixes

IPv4 addresses

198,656

IPv6 /48 networks

RPKI

7 valid6 no ROA

Peers and downstreams

Holder

AS name: UOFS
Description: University of the Free State
Organisation: University of the Free State
Abuse contact: Not published
Assigned: 2012-09-30
Registered: 2012-10-01
Record last changed: 2026-07-01 10:28 UTC

146.182.0.0/16 146.182.0.0/17 146.182.128.0/17 196.21.158.0/24 196.21.159.0/24 196.21.180.0/23 196.21.182.0/23 196.21.184.0/24 196.21.40.0/24 196.254.0.0/16 196.255.0.0/16

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade D · 58/100

partly	Prefixes covered by valid ROAs 7 of 13 announced prefixes are RPKI valid, 6 have no ROA.	13/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 2 IPv6 prefixes.	15/15
partly	More than one upstream 1 upstream seen in BGP.	5/10
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 2026-07-01.	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/37501"><img src="https://ip-fd.net/badge/asn/37501/health.svg" alt="AS37501 network health on IP-FD.net"></a>

Markdown

[![AS37501 network health](https://ip-fd.net/badge/asn/37501/health.svg)](https://ip-fd.net/asn/37501)

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:        AS37501
as-name:        ORG-UotF1-AFRINIC
handle:         AS37501
administrative,technical:LM16-AFRINIC (Louis Marais) <maraisl@ufs.ac.za>
registrant:     ORG-UotF1-AFRINIC (University of the Free State) <maraisl@ufs.ac.za>
administrative: FO40-AFRINIC (Faranah Osman) <OsmanF@ufs.ac.za>
registration:   2012-10-01T05:45:00Z
last changed:   2026-07-01T10:28:00Z
source:         AFRINIC (RDAP)

Routing data

Updated 2 days ago

Registry record

Fetched 2 days ago from AFRINIC 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/37501

const res = await fetch('https://ip-fd.net/api/v1/asn/37501', {
  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/37501', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/37501');
curl_setopt($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/37501", 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.