AS57137 SIEVERS-SNC Beteiligungs GmbH

Germany sievers-snc RIPE 4 IPv4 prefixes 5 IPv6 prefixes

IPv4 addresses

1,024

IPv6 /48 networks

65,540

RPKI

9 valid0 no ROA

Peers and downstreams

Holder

AS name: sievers-snc
Description: SIEVERS-SNC Beteiligungs GmbH
Organisation: SIEVERS-SNC Beteiligungs GmbH
Registered in: Osnabrück, Germany
Abuse contact: abuse@sievers-group.com
Assigned: 2019-07-25

45.129.148.0/24 45.129.149.0/24 45.129.150.0/24 45.129.151.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 89/100

pass	Prefixes covered by valid ROAs 9 of 9 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 5 IPv6 prefixes.	15/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@sievers-group.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
n/a	Registry record maintained We have no change date for this record.

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/57137"><img src="https://ip-fd.net/badge/asn/57137/health.svg" alt="AS57137 network health on IP-FD.net"></a>

Markdown

[![AS57137 network health](https://ip-fd.net/badge/asn/57137/health.svg)](https://ip-fd.net/asn/57137)

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

Routing changes

Last 30 days

2026-10-05 11:49 UTC	New neighbour	AS42184	upstream
2026-10-05 11:49 UTC	New prefix	2a0e:4c44:2575::/48
2026-10-05 11:49 UTC	New prefix	45.129.149.0/24

Routing data

From the weekly collection

Registry record

From the nightly import

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/57137

const res = await fetch('https://ip-fd.net/api/v1/asn/57137', {
  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/57137', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/57137');
curl_setopt($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/57137", 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.

AS3356	Level 3 Parent, LLC LEVEL3
AS31055	Consultix GmbH CONSULTIX-AS
AS42184	TKRZ Stadtwerke GmbH AS-TKRZ
AS61955	ColocationIX GmbH ColocationIX-AS