AS203545 Nerzen-Bilisim-Teknolojileri

Türkiye NERZEN-BILISIM-TEKNOLOJILERI RIPE 8 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

2,048

IPv6 /48 networks

RPKI

9 valid0 no ROA

Peers and downstreams

Holder

AS name: NERZEN-BILISIM-TEKNOLOJILERI
Description: Savas Anac
Organisation: Savas Anac
Abuse contact: abuse@nerzen.com
Assigned: 2026-01-07
Registered: 2026-01-08
Record last changed: 2026-09-28 20:39 UTC

141.98.50.0/24 144.225.64.0/24 156.233.71.0/24 166.1.5.0/24 185.73.125.0/24 194.146.26.0/24 23.26.123.0/24 31.77.55.0/24

Routing changes

Last 30 days

2026-10-04 04:46 UTC	New neighbour	AS213796	downstream
2026-10-04 04:46 UTC	New neighbour	AS208972	upstream
2026-10-04 04:46 UTC	Prefix gone	136.0.121.0/24
2026-10-04 04:46 UTC	New prefix	156.233.71.0/24
2026-10-04 04:46 UTC	New prefix	31.77.55.0/24

WHOIS

aut-num:        AS203545
as-name:        NERZEN-BILISIM-TEKNOLOJILERI
org:            ORG-NA1658-RIPE
sponsoring-org: ORG-HDBT5-RIPE
remarks:        ---------------------------------------------------------------
remarks:        Abuse & intrusion reports should
remarks:        be sent to: info@nerzen.com
remarks:        Sirketimiz, ilgili kanun geregi, "YER SAGLAYICI" konumundadir.
remarks:        Olusturulan icerikler musterilerin kontrol ve yonetimindeki web sunucularindan yapilmaktadir.
remarks:        kanun No. 5651 - MADDE 5(1) Yer saglayici, yer sagladigi icerigi kontrol etmek veya
remarks:        hukuka aykiri bir faaliyetin soz konusu olup olmadigini arastirmakla yukumlu degildir.
remarks:        Sirketimiz resmi bilgi taleplerine yanit vermektedir.
remarks:        ---------------------------------------------------------------
admin-c:        AA46103-RIPE
tech-c:         AA46103-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         lir-tr-hostingdunyam-1-MNT
mnt-by:         NERZEN-MNT
created:        2026-01-08T12:44:34Z
last-modified:  2026-09-28T20:39:28Z
source:         RIPE
% 12 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/203545

const res = await fetch('https://ip-fd.net/api/v1/asn/203545', {
  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/203545', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/203545');
curl_setopt($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/203545", 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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