AS50331 CITYNET Sp.z o.o.

Poland CITYNET RIPE 3 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

2,048

IPv6 /48 networks

RPKI

3 valid0 no ROA

Peers and downstreams

Holder

AS name: CITYNET
Description: CITYNET Sp.z o.o.
Organisation: CITYNET Sp.z o.o.
Abuse contact: isp@insite.pl
Assigned: 2009-12-20
Registered: 2009-12-21
Record last changed: 2018-09-04 10:47 UTC

178.217.192.0/21 178.217.196.0/24 178.217.197.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 70/100

pass	Prefixes covered by valid ROAs 3 of 3 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 5 upstreams seen in BGP.	10/10
pass	Working abuse contact isp@insite.pl 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
fail	Registry record maintained Last changed 2018-09-04.	0/5

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/50331"><img src="https://ip-fd.net/badge/asn/50331/health.svg" alt="AS50331 network health on IP-FD.net"></a>

Markdown

[![AS50331 network health](https://ip-fd.net/badge/asn/50331/health.svg)](https://ip-fd.net/asn/50331)

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

Routing changes

Last 30 days

2026-10-04 05:51 UTC	New neighbour	AS33891	upstream
2026-10-04 05:51 UTC	Relationship changed	AS28917	upstream to peer
2026-10-04 05:51 UTC	Relationship changed	AS286	upstream to peer

WHOIS

aut-num:        AS50331
as-name:        CITYNET
remarks:        CITYNET
org:            ORG-CA1002-RIPE
admin-c:        TP1292-RIPE
tech-c:         TP1292-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-INSITE-SPZOO
created:        2009-12-21T09:12:57Z
last-modified:  2018-09-04T10:47:11Z
source:         RIPE
sponsoring-org: ORG-ISZO9-RIPE
% 4 routing policy lines (import/export) not shown

Routing data

Updated 15 h ago

Registry record

Fetched 15 h ago 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/50331

const res = await fetch('https://ip-fd.net/api/v1/asn/50331', {
  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/50331', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/50331');
curl_setopt($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/50331", 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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