AS203434 Open Circle AG

Switzerland OPEN-CIRCLE RIPE 8 IPv4 prefixes 5 IPv6 prefixes

IPv4 addresses

2,048

IPv6 /48 networks

524,288

RPKI

13 valid0 no ROA

Peers and downstreams

Holder

AS name: OPEN-CIRCLE
Description: Open Circle AG
Organisation: Open Circle AG
Registered in: Zürich, Switzerland
Abuse contact: abuse@open-circle.ch
Assigned: 2016-01-18
Registered: 2016-01-19
Record last changed: 2025-11-06 09:04 UTC

185.134.164.0/23 185.134.164.0/24 185.134.165.0/24 185.134.166.0/23 185.134.166.0/24 185.134.167.0/24 45.66.232.0/23 45.66.234.0/23

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 13 of 13 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 5 IPv6 prefixes.	15/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@open-circle.ch 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 2025-11-06.	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/203434"><img src="https://ip-fd.net/badge/asn/203434/health.svg" alt="AS203434 network health on IP-FD.net"></a>

Markdown

[![AS203434 network health](https://ip-fd.net/badge/asn/203434/health.svg)](https://ip-fd.net/asn/203434)

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

Routing changes

Last 30 days

2026-10-05 04:12 UTC	Neighbour gone	AS58299	upstream
2026-10-05 04:12 UTC	Relationship changed	AS9009	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS9002	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS5405	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS48362	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS47147	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS4601	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS39351	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS34927	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS34177	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS34019	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS33891	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS29222	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS25091	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS24961	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS1836	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS1764	upstream to peer
2026-10-05 04:12 UTC	Relationship changed	AS13030	upstream to peer

WHOIS

aut-num:        AS203434
as-name:        OPEN-CIRCLE
remarks:        
remarks:        ==========================================
remarks:        TRANSIT
remarks:        ==========================================
remarks:        
remarks:        AS15576 is NTS
remarks:        
remarks:        AS29691 is NINE
remarks:        
remarks:        AS59414 is CLOUDSCALE
remarks:        
remarks:        AS39040 is NTS
remarks:        
remarks:        AS42476 is SWISSIX
remarks:        
admin-c:        YSNO-RIPE
tech-c:         YSNO-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         YOUNGSOLUTIONS-MNT
mnt-by:         OPEN-CIRCLE-MNT
org:            ORG-YSA7-RIPE
created:        2016-01-19T13:59:06Z
last-modified:  2025-11-06T09:04:34Z
source:         RIPE
% 20 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/203434

const res = await fetch('https://ip-fd.net/api/v1/asn/203434', {
  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/203434', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/203434');
curl_setopt($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/203434", 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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