AS50917 Diederik Focko de Zee

Netherlands DIEDERIK-AS RIPE 3 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

768

IPv6 /48 networks

RPKI

3 valid1 no ROA

Peers and downstreams

Holder

AS name: DIEDERIK-AS
Description: backbone.direct AS50917 T2 transit network -----BEGIN TOKEN-----7fc39f0501d904d16215a60340b9d4581b320397693c984b231d50d2783bf9dcd971e7fc7f5cbc2c6c8ae60534867983a4cd0ad10daa864c5edad09c3b7eac79-----END TOKEN-----
Organisation: Diederik Focko de Zee
Abuse contact: noc@backbone.direct
Assigned: 2022-07-18
Registered: 2022-07-19
Record last changed: 2025-06-30 20:11 UTC

103.141.12.0/24 45.152.39.0/24 89.37.98.0/24

Routing changes

Last 30 days

2026-10-04 07:29 UTC	Neighbour gone	AS271253	peer
2026-10-04 07:29 UTC	Neighbour gone	AS263152	peer
2026-10-04 07:29 UTC	Neighbour gone	AS215605	downstream
2026-10-04 07:29 UTC	Neighbour gone	AS213438	downstream
2026-10-04 07:29 UTC	Neighbour gone	AS58299	peer
2026-10-04 07:29 UTC	Neighbour gone	AS41051	upstream
2026-10-04 07:29 UTC	Neighbour gone	AS37721	peer
2026-10-04 07:29 UTC	Neighbour gone	AS21478	downstream
2026-10-04 07:29 UTC	New neighbour	AS215685	downstream
2026-10-04 07:29 UTC	New neighbour	AS215296	downstream
2026-10-04 07:29 UTC	Relationship changed	AS8298	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS6663	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS6204	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS61049	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS56911	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS56655	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS50629	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS50304	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS49127	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS41327	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 07:29 UTC	New neighbour	AS34927	peer
2026-10-04 07:29 UTC	Relationship changed	AS34019	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS3214	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS29075	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS24961	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS215596	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS209090	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS20764	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS20326	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS12859	upstream to peer
2026-10-04 07:29 UTC	Relationship changed	AS1103	upstream to peer

WHOIS

aut-num:        AS50917
as-name:        DIEDERIK-AS
org:            ORG-DFDZ1-RIPE
sponsoring-org: ORG-SG364-RIPE
descr:          backbone.direct AS50917 T2 transit network
remarks:        -----------------------------------------
descr:          -----BEGIN TOKEN-----7fc39f0501d904d16215a60340b9d4581b320397693c984b231d50d2783bf9dcd971e7fc7f5cbc2c6c8ae60534867983a4cd0ad10daa864c5edad09c3b7eac79-----END TOKEN-----
admin-c:        DFDZ1-RIPE
tech-c:         DFDZ1-RIPE
abuse-c:        AB47112-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         Sitefast-MNT
created:        2022-07-19T07:53:56Z
last-modified:  2025-06-30T20:11:32Z
source:         RIPE
% 8 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/50917

const res = await fetch('https://ip-fd.net/api/v1/asn/50917', {
  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/50917', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/50917');
curl_setopt($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/50917", 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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AS1103	SURF B.V. SURFNET-NL
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AS209090	Association Stolon STOLON
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AS212635	Jurrian van Iersel AS212635
AS215596	KISSGROUP SAS Kissgroup