120.133.0.0/16

CHINA-21VIANET IPv4 China ALLOCATED PORTABLE AS23724

Registration

APNIC

Range: 120.133.0.0 to 120.133.255.255
CIDR: 120.133.0.0/16
Addresses: 65,536
Net name: CHINA-21VIANET
Description: 21ViaNet(China),Inc. BOE Science Park, 10 Jiuxianqiao Road, Chaoyang, Beijing 100016, China
Holder: Not published
Status: ALLOCATED PORTABLE
Abuse contact: Not published
Last updated: 2026-04-26

Routing

Announced prefix	Origin	RPKI
120.133.0.0/16	AS23724 CHINANET-IDC-BJ-AP	No ROA

More specific assignments

No smaller assignments inside this range.

WHOIS

inetnum:        120.133.0.0 - 120.133.255.255
netname:        CHINA-21VIANET
descr:          21ViaNet(China),Inc.
descr:          BOE Science Park, 10 Jiuxianqiao Road, Chaoyang,
descr:          Beijing 100016, China
country:        CN
status:         ALLOCATED PORTABLE
source:         APNIC

Location of the first address

Beijing, China

City named in registry record

Report wrong location

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/network/120.133.0.0/16

const res = await fetch('https://ip-fd.net/api/v1/network/120.133.0.0/16', {
  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/network/120.133.0.0/16', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/network/120.133.0.0/16');
curl_setopt($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/network/120.133.0.0/16", 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))

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