AS201674 Wen ZhangYu

China WENZHANGYU RIPE 3 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

512

IPv6 /48 networks

RPKI

4 valid0 no ROA

Peers and downstreams

Holder

AS name: WENZHANGYU
Description: -----BEGIN TOKEN-----991f5c19ce783ca1473b336fa5a602c3660bb563baa1a95957ba24adf0a7eebb14d245900175c1e610e2271f783f8c403a9c0f6e87a9b1626ef74159f7bda0d6-----END TOKEN-----
Organisation: Wen ZhangYu
Registered in: Chongqing, China
Abuse contact: rnmcnmnmsl@outlook.com
Assigned: 2026-02-03
Registered: 2026-02-04
Record last changed: 2026-02-14 03:16 UTC

178.236.38.0/23 178.236.38.0/24 178.236.39.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 4 of 4 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 5 upstreams seen in BGP.	10/10
pass	Working abuse contact rnmcnmnmsl@outlook.com is published.	15/15
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 2026-02-14.	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/201674"><img src="https://ip-fd.net/badge/asn/201674/health.svg" alt="AS201674 network health on IP-FD.net"></a>

Markdown

[![AS201674 network health](https://ip-fd.net/badge/asn/201674/health.svg)](https://ip-fd.net/asn/201674)

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

Routing changes

Last 30 days

2026-10-04 23:12 UTC

New neighbour

AS56662

peer

WHOIS

aut-num:        AS201674
as-name:        WENZHANGYU
descr:          -----BEGIN TOKEN-----991f5c19ce783ca1473b336fa5a602c3660bb563baa1a95957ba24adf0a7eebb14d245900175c1e610e2271f783f8c403a9c0f6e87a9b1626ef74159f7bda0d6-----END TOKEN-----
org:            ORG-WW82-RIPE
sponsoring-org: ORG-LCTL2-RIPE
admin-c:        ZY1451-RIPE
tech-c:         ZY1451-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         WENZHANGYU-MNT
created:        2026-02-04T14:50:42Z
last-modified:  2026-02-14T03:16:19Z
source:         RIPE
% 4 routing policy lines (import/export) not shown

Routing data

Updated just now

Registry record

Fetched just now from RIPE

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/201674

const res = await fetch('https://ip-fd.net/api/v1/asn/201674', {
  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/201674', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/201674');
curl_setopt($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/201674", 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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