AS16246 O2 Czech Republic, a.s.

Czechia AS16246 RIPE 13 IPv4 prefixes 2 IPv6 prefixes

IPv4 addresses

133,120

IPv6 /48 networks

589,824

RPKI

15 valid0 no ROA

Peers and downstreams

Holder

AS name: AS16246
Description: NEJ.cz s.r.o
Organisation: O2 Czech Republic, a.s.
Abuse contact: abuse@o2.cz
Assigned: 2001-02-06
Registered: 2003-10-21
Record last changed: 2024-06-20 15:31 UTC

176.98.96.0/20 178.17.96.0/20 185.15.252.0/22 188.175.0.0/16 213.180.32.0/19 77.87.232.0/21 78.108.152.0/21 82.150.160.0/19 86.63.192.0/19 91.197.116.0/22 92.240.160.0/19 94.74.192.0/18 95.143.128.0/20

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 85/100

pass	Prefixes covered by valid ROAs 15 of 15 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/16246"><img src="https://ip-fd.net/badge/asn/16246/health.svg" alt="AS16246 network health on IP-FD.net"></a>

Markdown

[![AS16246 network health](https://ip-fd.net/badge/asn/16246/health.svg)](https://ip-fd.net/asn/16246)

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

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS16246
org:            ORG-STaN1-RIPE
admin-c:        CZO2-RIPE
tech-c:         CZO2-RIPE
as-name:        AS16246
descr:          NEJ.cz s.r.o
remarks:        ---- UPSTREAM ----
remarks:        ---- TRANSIT AS ----
remarks:        ---- NIX.CZ ----
remarks:        ---- NIX.CZ v6----
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS5610-MTN
created:        2003-10-21T14:46:13Z
last-modified:  2024-06-20T15:31:33Z
source:         RIPE
% 294 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/16246

const res = await fetch('https://ip-fd.net/api/v1/asn/16246', {
  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/16246', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/16246');
curl_setopt($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/16246", 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.

AS5610	O2 Czech Republic, a.s. O2-CZECH-REPUBLIC
AS12570	O2 Czech Republic, a.s. ITSELF
AS29321	O2 Czech Republic, a.s. CentroNetAS
AS31246	O2 Czech Republic, a.s. NETBOX-AS
AS39736	ICT Support, s.r.o. ICTSUPPORT
AS41046	O2 Czech Republic, a.s. NEJTV-AS
AS44070	O2 Czech Republic, a.s. MCnet-AS
AS47681	O2 Czech Republic, a.s. RIOMEDIA
AS49767	O2 Czech Republic, a.s. INTERNETPB-AS
AS62178	MASTER IT Technologies, a.s. Master_IT_Technologies
AS197197	CETIN a.s. M-NET
AS202657	Hnojnik
AS207015	Position s.r.o. POSITION
AS212315	Ftcz-Net FTCZ-NET