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

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 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/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.

AS3257	GTT Communications Inc. GTT-BACKBONE
AS6204	TMRC GROUP SRL ZET-NET
AS9002	RETN Limited RETN-AS
AS16342	Toya sp.z.o.o TOYA
AS33891	Core-Backbone GmbH CORE-BACKBONE

AS286	Kpn KPN
AS24482	SG.GS SGGS-AS-AP
AS28917	Fiord Networks, UAB Fiord-AS
AS36236	NetActuate, Inc NETACTUATE
AS49544	i3D.net B.V i3Dnet