AS43740 Secure Telecommunication LLC

Russia ZTK-AS RIPE 9 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

2,304

IPv6 /48 networks

RPKI

0 valid9 no ROA

Peers and downstreams

Holder

AS name: ZTK-AS
Description: Secure Telecommunication LLC
Organisation: Secure Telecommunication LLC
Registered in: Tula, Russia
Abuse contact: abuse@zonatelecom.ru
Assigned: 2016-12-21
Registered: 2016-12-22
Record last changed: 2025-12-23 22:10 UTC

185.149.160.0/24 185.149.161.0/24 185.149.162.0/24 185.149.163.0/24 185.179.224.0/24 185.179.225.0/24 185.179.226.0/23 185.179.226.0/24 194.140.247.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade D · 50/100

fail	Prefixes covered by valid ROAs 0 of 9 announced prefixes are RPKI valid, 9 have no ROA.	0/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 5 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@zonatelecom.ru 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 2025-12-23.	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/43740"><img src="https://ip-fd.net/badge/asn/43740/health.svg" alt="AS43740 network health on IP-FD.net"></a>

Markdown

[![AS43740 network health](https://ip-fd.net/badge/asn/43740/health.svg)](https://ip-fd.net/asn/43740)

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

Routing changes

Last 30 days

2026-10-03 21:42 UTC

Relationship changed

AS57724

upstream to peer

WHOIS

aut-num:        AS43740
as-name:        ZTK-AS
org:            ORG-STL140-RIPE
admin-c:        MA25247-RIPE
tech-c:         MA25247-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         lir-ru-ztk-1-MNT
created:        2016-12-22T10:47:14Z
last-modified:  2025-12-23T22:10:55Z
source:         RIPE
% 16 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/43740

const res = await fetch('https://ip-fd.net/api/v1/asn/43740', {
  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/43740', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/43740');
curl_setopt($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/43740", 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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