AS25248 RADIOKOMUNIKACE a.s.

Czechia BlueTone-AS RIPE 5 IPv4 prefixes 2 IPv6 prefixes

IPv4 addresses

106,752

IPv6 /48 networks

65,537

RPKI

5 valid2 no ROA

Peers and downstreams

Holder

AS name: BlueTone-AS
Description: The Czech Republic
Organisation: RADIOKOMUNIKACE a.s.
Abuse contact: abuse@bluetone.cz
Assigned: 2002-09-10
Registered: 2002-09-20
Record last changed: 2026-09-02 11:56 UTC

193.32.56.0/24 212.158.128.0/19 82.99.128.0/18 84.244.64.0/18 85.207.0.0/16

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 83/100

partly	Prefixes covered by valid ROAs 5 of 7 announced prefixes are RPKI valid, 2 have no ROA.	18/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 2 IPv6 prefixes.	15/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@bluetone.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 2026-09-02.	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/25248"><img src="https://ip-fd.net/badge/asn/25248/health.svg" alt="AS25248 network health on IP-FD.net"></a>

Markdown

[![AS25248 network health](https://ip-fd.net/badge/asn/25248/health.svg)](https://ip-fd.net/asn/25248)

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

Routing changes

Last 30 days

2026-10-05 16:38 UTC	Neighbour gone	AS44901	peer
2026-10-05 16:38 UTC	Neighbour gone	AS13194	upstream
2026-10-05 16:38 UTC	New neighbour	AS200871	downstream
2026-10-05 16:38 UTC	Relationship changed	AS9009	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS8218	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS6663	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS6461	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS6204	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS50629	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS4455	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS33891	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS264409	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS22356	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS20562	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS1764	upstream to peer
2026-10-05 16:38 UTC	Relationship changed	AS14840	upstream to peer

WHOIS

aut-num:        AS25248
as-name:        BlueTone-AS
descr:          The Czech Republic
org:            ORG-CRa1-RIPE
admin-c:        CRA37-RIPE
tech-c:         CRA37-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         BlueTone-MNT
created:        2002-09-20T09:38:10Z
last-modified:  2026-09-02T11:56:08Z
source:         RIPE
% 208 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/25248

const res = await fetch('https://ip-fd.net/api/v1/asn/25248', {
  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/25248', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/25248');
curl_setopt($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/25248", 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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