37.44.0.0/21

DE-SYSELEVEN-20120106 IPv4 Germany ALLOCATED PA AS25291

Registration

RIPE

Range: 37.44.0.0 to 37.44.7.255
CIDR: 37.44.0.0/21
Addresses: 2,048
Net name: DE-SYSELEVEN-20120106
Holder: SysEleven GmbH ORG-SG57-RIPE
Status: ALLOCATED PA
Abuse contact: ripe-abuse@syseleven.de
Last updated: 2026-04-26

Routing

Announced prefix	Origin	RPKI
37.44.0.0/21	AS25291 SYSELEVEN	RPKI valid

More specific assignments

132

Range	Net name	Country
37.44.0.0 - 37.44.0.255	CLOUD-IAAS-GLOBAL-POOL	DE
37.44.1.0 - 37.44.1.1	CUST-TRANSFER-NET	DE
37.44.1.2 - 37.44.1.3	CUST-TRANSFER-NET	DE
37.44.1.4 - 37.44.1.5	CUST-TRANSFER-NET	DE
37.44.1.6 - 37.44.1.7	INFRA-TRANSFER-NET	DE
37.44.1.8 - 37.44.1.15	CUST-ACCESS-NET	DE
37.44.1.16 - 37.44.1.31	CUST-ACCESS-NET	DE
37.44.1.32 - 37.44.1.39	RIPE-ATLAS-NET	DE
37.44.1.40 - 37.44.1.47	INFRA-SERVICE-APP-NET	DE
37.44.1.48 - 37.44.1.55	CUST-ACCESS-NET	DE
37.44.1.56 - 37.44.1.63	CUST-ACCESS-NET	DE
37.44.1.64 - 37.44.1.127	CLOUD-IAAS-GLOBAL-POOL	DE
37.44.1.128 - 37.44.1.143	INFRA-MGMT-NET	DE
37.44.1.144 - 37.44.1.151	CUST-ACCESS-NET	DE
37.44.1.152 - 37.44.1.159	CUST-ACCESS-NET	DE
37.44.1.160 - 37.44.1.175	CLOUD-MANAGED-GLOBAL-POOL	DE
37.44.1.176 - 37.44.1.191	CLOUD-MANAGED-GLOBAL-POOL	DE
37.44.1.192 - 37.44.1.199	CUST-ACCESS-NET	DE
37.44.1.200 - 37.44.1.207	INFRA-SERVICE-APP-NET	DE
37.44.1.208 - 37.44.1.215	INFRA-ROUTING-NET	DE
37.44.1.216 - 37.44.1.223	INFRA-MGMT-NET	DE
37.44.1.224 - 37.44.1.239	CUST-ACCESS-NET	DE
37.44.1.248 - 37.44.1.255	CUST-ACCESS-NET	DE
37.44.2.0 - 37.44.2.7	CUST-ACCESS-NET	DE
37.44.2.8 - 37.44.2.15	CUST-TRANSFER-NET	DE
37.44.2.16 - 37.44.2.31	CUST-ACCESS-NET	DE
37.44.2.32 - 37.44.2.63	INFRA-MGMT-NET	DE
37.44.2.64 - 37.44.2.65	CUST-TRANSFER-NET	DE
37.44.2.66 - 37.44.2.67	INFRA-TRANSFER-NET	DE
37.44.2.68 - 37.44.2.69	CUST-TRANSFER-NET	DE
37.44.2.70 - 37.44.2.71	CUST-TRANSFER-NET	DE
37.44.2.72 - 37.44.2.79	CUST-ACCESS-NET	DE
37.44.2.80 - 37.44.2.87	INFRA-SERVICE-APP-NET	DE
37.44.2.96 - 37.44.2.103	INFRA-SERVICE-APP-NET	DE
37.44.2.104 - 37.44.2.111	CUST-ACCESS-NET	DE
37.44.2.112 - 37.44.2.119	INFRA-SERVICE-APP-NET	DE
37.44.2.120 - 37.44.2.123	INFRA-SERVICE-APP-NET	DE
37.44.2.124 - 37.44.2.125	INFRA-TRANSFER-NET	DE
37.44.2.126 - 37.44.2.127	INFRA-TRANSFER-NET	DE
37.44.2.128 - 37.44.2.159	CUST-ACCESS-NET	DE
37.44.2.160 - 37.44.2.167	INFRA-SERVICE-APP-NET	DE
37.44.2.168 - 37.44.2.171	CUST-TRANSFER-NET	DE
37.44.2.172 - 37.44.2.175	CUST-ACCESS-NET	DE
37.44.2.176 - 37.44.2.177	INFRA-TRANSFER-NET	DE
37.44.2.178 - 37.44.2.179	INFRA-TRANSFER-NET	DE
37.44.2.180 - 37.44.2.181	INFRA-TRANSFER-NET	DE
37.44.2.182 - 37.44.2.183	INFRA-TRANSFER-NET	DE
37.44.2.184 - 37.44.2.185	INFRA-TRANSFER-NET	DE
37.44.2.186 - 37.44.2.187	INFRA-TRANSFER-NET	DE
37.44.2.188 - 37.44.2.189	INFRA-TRANSFER-NET	DE
37.44.2.190 - 37.44.2.191	INFRA-TRANSFER-NET	DE
37.44.2.192 - 37.44.2.195	INFRA-TRANSFER-NET	DE
37.44.2.196 - 37.44.2.199	INFRA-TRANSFER-NET	DE
37.44.2.200 - 37.44.2.201	INFRA-TRANSFER-NET	DE
37.44.2.202 - 37.44.2.203	INFRA-TRANSFER-NET	DE
37.44.2.204 - 37.44.2.205	INFRA-TRANSFER-NET	DE
37.44.2.206 - 37.44.2.207	CUST-TRANSFER-NET	DE
37.44.2.208 - 37.44.2.211	INFRA-TRANSFER-NET	DE
37.44.2.212 - 37.44.2.213	INFRA-TRANSFER-NET	DE
37.44.2.214 - 37.44.2.215	CUST-TRANSFER-NET	DE
37.44.2.216 - 37.44.2.217	INFRA-TRANSFER-NET	DE
37.44.2.218 - 37.44.2.219	INFRA-TRANSFER-NET	DE
37.44.2.220 - 37.44.2.221	INFRA-TRANSFER-NET	DE
37.44.2.222 - 37.44.2.223	INFRA-TRANSFER-NET	DE
37.44.2.224 - 37.44.2.231	CUST-ACCESS-NET	DE
37.44.2.232 - 37.44.2.239	CUST-ACCESS-NET	DE
37.44.2.240 - 37.44.2.243	CUST-TRANSFER-NET	DE
37.44.2.244 - 37.44.2.247	INFRA-SERVICE-APP-NET	DE
37.44.2.248 - 37.44.2.249	CUST-TRANSFER-NET	DE
37.44.2.250 - 37.44.2.251	CUST-ACCESS-NET	DE
37.44.2.252 - 37.44.2.253	INFRA-MGMT-NET	DE
37.44.2.254 - 37.44.2.255	CUST-TRANSFER-NET	DE
37.44.3.0 - 37.44.3.63	INFRA-MGMT-NET	DE
37.44.3.64 - 37.44.3.127	INFRA-SERVICE-APP-NET	DE
37.44.3.128 - 37.44.3.143	INFRA-SERVICE-APP-NET	DE
37.44.3.144 - 37.44.3.159	INFRA-SERVICE-APP-NET	DE
37.44.3.160 - 37.44.3.175	CUST-ACCESS-NET	DE
37.44.3.176 - 37.44.3.191	INFRA-SERVICE-APP-NET	DE
37.44.3.192 - 37.44.3.223	INFRA-SERVICE-APP-NET	DE
37.44.3.224 - 37.44.3.239	INFRA-MGMT-NET	DE
37.44.3.240 - 37.44.3.255	INFRA-SERVICE-APP-NET	DE
37.44.4.0 - 37.44.5.255	CLOUD-MANAGED-GLOBAL-POOL	DE
37.44.6.0 - 37.44.6.255	CLOUD-MANAGED-GLOBAL-POOL	DE
37.44.7.0 - 37.44.7.7	CUST-TRANSFER-NET	DE
37.44.7.8 - 37.44.7.15	INFRA-SERVICE-APP-NET	DE
37.44.7.16 - 37.44.7.19	CUST-ACCESS-NET	DE
37.44.7.20 - 37.44.7.23	CUST-ACCESS-NET	DE
37.44.7.24 - 37.44.7.25	INFRA-TRANSFER-NET	DE
37.44.7.26 - 37.44.7.27	INFRA-TRANSFER-NET	DE
37.44.7.28 - 37.44.7.29	INFRA-TRANSFER-NET	DE
37.44.7.30 - 37.44.7.31	INFRA-TRANSFER-NET	DE
37.44.7.32 - 37.44.7.47	INFRA-SERVICE-APP-NET	DE
37.44.7.48 - 37.44.7.55	CUST-ACCESS-NET	DE
37.44.7.56 - 37.44.7.57	INFRA-TRANSFER-NET	DE
37.44.7.58 - 37.44.7.59	INFRA-TRANSFER-NET	DE
37.44.7.64 - 37.44.7.95	CLOUD-IAAS-GLOBAL-POOL	DE
37.44.7.96 - 37.44.7.97	CUST-TRANSFER-NET	DE
37.44.7.98 - 37.44.7.99	CUST-TRANSFER-NET	DE
37.44.7.100 - 37.44.7.101	CUST-TRANSFER-NET	DE
37.44.7.102 - 37.44.7.103	CUST-TRANSFER-NET	DE
37.44.7.104 - 37.44.7.107	CUST-ACCESS-NET	DE
37.44.7.108 - 37.44.7.109	CUST-TRANSFER-NET	DE
37.44.7.110 - 37.44.7.111	CUST-TRANSFER-NET	DE
37.44.7.112 - 37.44.7.113	INFRA-TRANSFER-NET	DE
37.44.7.114 - 37.44.7.115	INFRA-TRANSFER-NET	DE
37.44.7.116 - 37.44.7.117	INFRA-TRANSFER-NET	DE
37.44.7.118 - 37.44.7.119	INFRA-TRANSFER-NET	DE
37.44.7.120 - 37.44.7.121	INFRA-TRANSFER-NET	DE
37.44.7.122 - 37.44.7.123	INFRA-TRANSFER-NET	DE
37.44.7.124 - 37.44.7.127	INFRA-SERVICE-APP-NET	DE
37.44.7.128 - 37.44.7.143	CUST-ACCESS-NET	DE
37.44.7.144 - 37.44.7.151	CUST-ACCESS-NET	DE
37.44.7.152 - 37.44.7.159	CUST-ACCESS-NET	DE
37.44.7.160 - 37.44.7.161	CUST-TRANSFER-NET	DE
37.44.7.162 - 37.44.7.163	CUST-TRANSFER-NET	DE
37.44.7.164 - 37.44.7.167	CUST-TRANSFER-NET	DE
37.44.7.168 - 37.44.7.175	CUST-ACCESS-NET	DE
37.44.7.176 - 37.44.7.177	CUST-TRANSFER-NET	DE
37.44.7.178 - 37.44.7.179	CUST-TRANSFER-NET	DE
37.44.7.180 - 37.44.7.183	CUST-TRANSFER-NET	DE
37.44.7.184 - 37.44.7.185	CUST-TRANSFER-NET	DE
37.44.7.186 - 37.44.7.187	CUST-TRANSFER-NET	DE
37.44.7.188 - 37.44.7.191	CUST-ACCESS-NET	DE
37.44.7.192 - 37.44.7.207	CUST-ACCESS-NET	DE
37.44.7.208 - 37.44.7.223	INFRA-SERVICE-APP-NET	DE
37.44.7.224 - 37.44.7.231	INFRA-TRANSFER-NET	DE
37.44.7.232 - 37.44.7.239	INFRA-MGMT-NET	DE
37.44.7.240 - 37.44.7.247	CUST-ACCESS-NET	DE
37.44.7.248 - 37.44.7.249	CUST-ACCESS-NET	DE
37.44.7.250 - 37.44.7.251	CUST-TRANSFER-NET	DE
37.44.7.252 - 37.44.7.253	INFRA-TRANSFER-NET	DE
37.44.7.254 - 37.44.7.255	CUST-TRANSFER-NET	DE

WHOIS

inetnum:        37.44.0.0 - 37.44.7.255
netname:        DE-SYSELEVEN-20120106
country:        DE
org:            ORG-SG57-RIPE
status:         ALLOCATED PA
source:         RIPE

organisation:   ORG-SG57-RIPE
org-name:       SysEleven GmbH
country:        DE

role:           SysEleven Network Operation Center
abuse-mailbox:  ripe-abuse@syseleven.de
nic-hdl:        SNO9-RIPE

Location of the first address

Berlin, Germany

Registered organisation address

Report wrong location

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/network/37.44.0.0/21

const res = await fetch('https://ip-fd.net/api/v1/network/37.44.0.0/21', {
  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/37.44.0.0/21', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/network/37.44.0.0/21');
curl_setopt($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/37.44.0.0/21", 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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