AS51191 Core-Backbone GmbH

Germany XIRRA RIPE 8 IPv4 prefixes 250 IPv6 prefixes

IPv4 addresses

7,168

IPv6 /48 networks

524,291

RPKI

256 valid2 no ROA

Peers and downstreams

Holder

AS name: XIRRA
Description: Core-Backbone GmbH
Organisation: Core-Backbone GmbH
Abuse contact: abuse@core-backbone.com
Assigned: 2011-02-06
Registered: 2011-02-07
Record last changed: 2025-06-25 06:17 UTC

130.185.104.0/21 185.108.216.0/22 185.169.24.0/24 185.169.25.0/24 185.24.68.0/22 195.138.240.0/21 195.138.244.0/24 91.232.96.0/23

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 256 of 258 announced prefixes are RPKI valid, 2 have no ROA.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 250 IPv6 prefixes.	15/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@core-backbone.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
pass	Registry record maintained Last changed 2025-06-25.	5/5

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/51191"><img src="https://ip-fd.net/badge/asn/51191/health.svg" alt="AS51191 network health on IP-FD.net"></a>

Markdown

[![AS51191 network health](https://ip-fd.net/badge/asn/51191/health.svg)](https://ip-fd.net/asn/51191)

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

Routing changes

Last 30 days

2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:356c::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3560::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:354d::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:354b::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3540::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3516::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3515::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:350c::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:337a::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3379::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3376::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3375::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3374::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3373::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3372::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3371::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3370::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:336c::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3360::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:334d::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:334b::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3340::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3316::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3315::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3314::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3313::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3312::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3311::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3310::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:330e::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:330d::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:330c::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:330a::/48
2026-10-04 09:44 UTC	Prefix gone	2a06:4b01:3309::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33e6::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:34f3::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:3453::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33ff::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f5::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35fb::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35e5::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35fa::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35ea::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33e5::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33f9::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:3452::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:3477::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:34f2::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f3::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35e2::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:34e2::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33f2::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:34e7::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f4::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35e4::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:34ea::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f2::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35e6::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33e2::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:3455::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33ea::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f6::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35e7::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:34f9::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33f3::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35fd::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f1::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33fd::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:3454::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f9::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35f7::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33fa::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35ff::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:344e::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33e7::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:3451::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:35fe::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:344f::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33fb::/48
2026-10-04 09:44 UTC	New prefix	2a06:4b01:33fe::/48

WHOIS

aut-num:        AS51191
as-name:        XIRRA
org:            ORG-IICG1-RIPE
admin-c:        LG6981-RIPE
tech-c:         LG6981-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CORE-BACKBONE
created:        2011-02-07T16:13:12Z
last-modified:  2025-06-25T06:17:58Z
source:         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/51191

const res = await fetch('https://ip-fd.net/api/v1/asn/51191', {
  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/51191', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/51191');
curl_setopt($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/51191", 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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