AS12570 O2 Czech Republic, a.s.

Czechia ITSELF RIPE 11 IPv4 prefixes 2 IPv6 prefixes

IPv4 addresses

53,760

IPv6 /48 networks

589,824

RPKI

13 valid0 no ROA

Peers and downstreams

Holder

AS name: ITSELF
Description: Network and internet service provider. Czech Republic
Organisation: O2 Czech Republic, a.s.
Abuse contact: abuse@o2.cz
Assigned: 1999-07-27
Registered: 2002-05-27
Record last changed: 2024-06-20 15:31 UTC

109.105.32.0/19 185.8.188.0/22 193.17.248.0/22 195.78.122.0/23 212.4.128.0/19 212.96.160.0/19 213.211.32.0/19 80.78.144.0/20 88.83.224.0/19 89.190.40.0/21 89.190.48.0/20

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 85/100

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 2 IPv6 prefixes.	15/15
partly	More than one upstream 1 upstream seen in BGP.	5/10
pass	Working abuse contact abuse@o2.cz 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 2024-06-20.	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/12570"><img src="https://ip-fd.net/badge/asn/12570/health.svg" alt="AS12570 network health on IP-FD.net"></a>

Markdown

[![AS12570 network health](https://ip-fd.net/badge/asn/12570/health.svg)](https://ip-fd.net/asn/12570)

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

Routing changes

Last 30 days

2026-10-04 13:44 UTC

Relationship changed

AS47232

upstream to peer

WHOIS

aut-num:        AS12570
as-name:        ITSELF
descr:          Network and internet service provider.
descr:          Czech Republic
remarks:        ======================= Upstream providers ========================
remarks:        ========================= Customers ==========================
remarks:        ======================= NIX peerings ==========================
remarks:        = NIX.CZ route server peerings
remarks:        = NIX.CZ direct peerings
remarks:        = NIX.SK route server peerings
remarks:        ======================= Direct peerings ==========================
remarks:        --------------------------------------------------------------------------------------------------------
remarks:        
remarks:        
org:            ORG-STaN1-RIPE
admin-c:        CZO2-RIPE
tech-c:         CZO2-RIPE
remarks:        --------------------------------------------------------------------------------------------------------
remarks:        
remarks:        BGP communities accepted from downstream:
remarks:        1. Blackhole
remarks:        12570:666
remarks:        
remarks:        --------------------------------------------------------------------------------------------------------
remarks:        
remarks:        Routing issues and peering requests: noc at itself.cz
remarks:        
remarks:        --------------------------------------------------------------------------------------------------------
remarks:        
remarks:        This Autonomous System is present at the following exchanges: NIX-CZ, NIX-SK and SIX-SK.
remarks:        
remarks:        --------------------------------------------------------------------------------------------------------
remarks:        
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS5610-MTN
created:        2002-05-27T13:11:15Z
last-modified:  2024-06-20T15:31:33Z
source:         RIPE
% 16 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/12570

const res = await fetch('https://ip-fd.net/api/v1/asn/12570', {
  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/12570', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/12570');
curl_setopt($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/12570", 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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