AS56737 Stadtwerke Flensburg GmbH

Germany STADTWERKE-FLENSBURG-AS RIPE 2 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

3,072

IPv6 /48 networks

524,288

RPKI

3 valid0 no ROA

Peers and downstreams

Holder

AS name: STADTWERKE-FLENSBURG-AS
Description: Stadtwerke Flensburg GmbH
Organisation: Stadtwerke Flensburg GmbH
Registered in: Flensburg, Germany
Abuse contact: ripe-admin@stadtwerke-flensburg.de
Assigned: 2011-05-04
Registered: 2011-05-06
Record last changed: 2026-09-17 06:42 UTC

185.140.200.0/22 31.209.184.0/21

Routing changes

Last 30 days

2026-10-03 19:00 UTC	Relationship changed	AS8881	upstream to downstream
2026-10-03 19:00 UTC	New neighbour	AS50629	upstream
2026-10-03 19:00 UTC	Relationship changed	AS31027	downstream to upstream

WHOIS

aut-num:        AS56737
as-name:        STADTWERKE-FLENSBURG-AS
org:            ORG-SFG4-RIPE
admin-c:        ED3678-RIPE
tech-c:         ED3678-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         mnt-stwfl
created:        2011-05-06T12:12:18Z
last-modified:  2026-09-17T06:42:11Z
source:         RIPE
% 14 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/56737

const res = await fetch('https://ip-fd.net/api/v1/asn/56737', {
  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/56737', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/56737');
curl_setopt($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/56737", 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.

AS8881	1&1 Versatel GmbH VERSATEL
AS8956	Flens-net
AS204135	LEMARIT GmbH LEMARIT