AS41743 OPTIMASET Ltd.

Russia ASOPTIMASET RIPE 8 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

3,072

IPv6 /48 networks

524,288

RPKI

9 valid0 no ROA

Peers and downstreams

Holder

AS name: ASOPTIMASET
Description: OPTIMASET Ltd.
Organisation: OPTIMASET Ltd.
Registered in: Kizlyar, Russia
Abuse contact: alexnvis@gmail.com
Assigned: 2012-05-07
Registered: 2012-05-08
Record last changed: 2026-02-24 18:01 UTC

176.115.136.0/21 176.115.136.0/24 176.115.137.0/24 176.115.138.0/24 176.115.139.0/24 176.115.140.0/23 176.115.142.0/23 193.187.156.0/22

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 9 of 9 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 6 upstreams seen in BGP.	10/10
pass	Working abuse contact alexnvis@gmail.com 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 2026-02-24.	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/41743"><img src="https://ip-fd.net/badge/asn/41743/health.svg" alt="AS41743 network health on IP-FD.net"></a>

Markdown

[![AS41743 network health](https://ip-fd.net/badge/asn/41743/health.svg)](https://ip-fd.net/asn/41743)

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

Routing changes

Last 30 days

2026-10-04 11:36 UTC	Neighbour gone	AS209823	peer
2026-10-04 11:36 UTC	Relationship changed	AS9198	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS6939	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS61049	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS60171	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS50673	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS49434	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS47692	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS47626	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS41327	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS31500	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS25091	upstream to peer
2026-10-04 11:36 UTC	Relationship changed	AS15958	upstream to peer

WHOIS

aut-num:        AS41743
as-name:        ASOPTIMASET
org:            ORG-OPTI4-RIPE
admin-c:        GS12724-RIPE
tech-c:         GS12724-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         OPTIMASET-MNT
created:        2012-05-08T07:36:51Z
last-modified:  2026-02-24T18:01:13Z
source:         RIPE
sponsoring-org: ORG-Vs35-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/41743

const res = await fetch('https://ip-fd.net/api/v1/asn/41743', {
  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/41743', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/41743');
curl_setopt($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/41743", 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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