AS25538 Internet Ulm/Neu-Ulm e.V.

Germany IN-ULM RIPE 3 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

5,376

IPv6 /48 networks

65,536

RPKI

4 valid0 no ROA

Peers and downstreams

Holder

AS name: IN-ULM
Description: Internet Ulm/Neu-Ulm e.V.
Organisation: Internet Ulm/Neu-Ulm e.V.
Registered in: Neu-Ulm, Germany
Abuse contact: abuse@in-ulm.de
Assigned: 2002-12-26
Registered: 2002-12-27
Record last changed: 2026-09-10 16:34 UTC

193.110.90.0/24 217.10.0.0/20 91.210.72.0/22

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 4 of 4 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 3 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@in-ulm.de 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 2026-09-10.	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/25538"><img src="https://ip-fd.net/badge/asn/25538/health.svg" alt="AS25538 network health on IP-FD.net"></a>

Markdown

[![AS25538 network health](https://ip-fd.net/badge/asn/25538/health.svg)](https://ip-fd.net/asn/25538)

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

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS25538
as-name:        IN-ULM
org:            ORG-IUen1-RIPE
remarks:        network of IN-ULM e.V.
remarks:        IN-Ulm e.V. is a non commercial ISP for the region of Ulm/DE
admin-c:        RK10381-RIPE
tech-c:         AFB13-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         BN-ULM
created:        2002-12-27T16:00:59Z
last-modified:  2026-09-10T16:34:08Z
source:         RIPE
% 15 routing policy lines (import/export) not shown

Routing data

Updated 1 days ago

Registry record

Fetched 1 days ago 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/25538

const res = await fetch('https://ip-fd.net/api/v1/asn/25538', {
  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/25538', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/25538');
curl_setopt($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/25538", 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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