AS203993 S.J.M. Steffann

Netherlands GNA-DC1-AS RIPE 4 IPv4 prefixes 4 IPv6 prefixes

IPv4 addresses

1,280

IPv6 /48 networks

65,539

RPKI

8 valid0 no ROA

Peers and downstreams

Holder

AS name: GNA-DC1-AS
Description: S.J.M. Steffann
Organisation: S.J.M. Steffann
Registered in: Apeldoorn, Netherlands
Abuse contact: abuse@steffann.nl
Assigned: 2015-09-15
Registered: 2015-09-16
Record last changed: 2026-06-12 09:59 UTC

185.54.92.0/23 67.221.252.0/24 67.221.253.0/24 67.221.255.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 8 of 8 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 4 IPv6 prefixes.	15/15
pass	More than one upstream 3 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@steffann.nl 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 2026-06-12.	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/203993"><img src="https://ip-fd.net/badge/asn/203993/health.svg" alt="AS203993 network health on IP-FD.net"></a>

Markdown

[![AS203993 network health](https://ip-fd.net/badge/asn/203993/health.svg)](https://ip-fd.net/asn/203993)

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

Routing changes

Last 30 days

2026-10-05 07:00 UTC	Neighbour gone	AS58299	peer
2026-10-05 07:00 UTC	Neighbour gone	AS56911	upstream
2026-10-05 07:00 UTC	Neighbour gone	AS56662	peer
2026-10-05 07:00 UTC	Neighbour gone	AS50869	upstream
2026-10-05 07:00 UTC	Relationship changed	AS9044	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS8298	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS61049	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS58057	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS5405	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS43727	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS41327	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS39351	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS34019	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS25091	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS24961	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS22356	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS14840	upstream to peer
2026-10-05 07:00 UTC	Relationship changed	AS1031	upstream to peer

WHOIS

aut-num:        AS203993
as-name:        GNA-DC1-AS
org:            ORG-SSP3-RIPE
admin-c:        SJMS-RIPE
tech-c:         SJMS-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         STEFFANN-MNT
created:        2015-09-16T10:51:27Z
last-modified:  2026-06-12T09:59:22Z
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/203993

const res = await fetch('https://ip-fd.net/api/v1/asn/203993', {
  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/203993', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/203993');
curl_setopt($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/203993", 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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