AS20539 Technical Centre Radio Systems Ltd.

Ukraine TCRS-AS RIPE 21 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

12,800

IPv6 /48 networks

4,096

RPKI

22 valid0 no ROA

Peers and downstreams

Holder

AS name: TCRS-AS
Description: Sumy, Ukraine ====Upstream======================= ====Clients========================= ====SUMY-IX======================== ==========================================
Organisation: Technical Centre Radio Systems Ltd.
Registered in: Sumy, Ukraine
Abuse contact: abuse@rs.net.ua
Assigned: 2001-03-27
Registered: 2002-04-09
Record last changed: 2024-06-19 06:43 UTC

Routing changes

Last 30 days

2026-10-04 05:27 UTC	Neighbour gone	AS48648	upstream
2026-10-04 05:27 UTC	Neighbour gone	AS44901	peer
2026-10-04 05:27 UTC	New neighbour	AS8772	peer
2026-10-04 05:27 UTC	Relationship changed	AS6663	upstream to peer
2026-10-04 05:27 UTC	Relationship changed	AS264409	upstream to peer
2026-10-04 05:27 UTC	Relationship changed	AS14840	upstream to peer

WHOIS

aut-num:        AS20539
as-name:        TCRS-AS
descr:          Sumy, Ukraine
org:            ORG-TCRS2-RIPE
descr:          ====Upstream=======================
descr:          ====Clients=========================
descr:          ====SUMY-IX========================
descr:          ==========================================
descr:          Informational BGP communities advertised to customers:
descr:          Community attributes accepted from customers
descr:          20539:20x - ITSystems
descr:          .
descr:          .
descr:          x = 1 prepend 1
descr:          x = 2 prepend 2
descr:          x = 3 prepend 3
descr:          x = 6 prepend 6
descr:          x = 0 do not announce
descr:          .
descr:          20539:50 - set localpref = 50
descr:          20539:6666 - Blackhole community, only /32.
descr:          ==========================================
descr:          Abuse reports: abuse@rs.net.ua
descr:          Network Operation Center: noc@rs.net.ua
descr:          Looking Glass http://lg.rs.net.ua
descr:          ============================================
remarks:        Technical support: ....................................valera@rs.net.ua
remarks:        Network Operation Center: ............................noc@rs.net.ua
remarks:        Corporate web site:.....................................https://rs.net.ua
admin-c:        TCRS-CC
tech-c:         TCRS-CC
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         TCRS-MNT
created:        2002-04-09T13:19:20Z
last-modified:  2024-06-19T06:43:00Z
source:         RIPE
sponsoring-org: ORG-MTL10-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/20539

const res = await fetch('https://ip-fd.net/api/v1/asn/20539', {
  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/20539', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/20539');
curl_setopt($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/20539", 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.

AS3326	PRIVATE JOINT STOCK COMPANY "DATAGROUP" Datagroup
AS6939	Hurricane Electric LLC HURRICANE
AS13249	PRIVATE JOINT STOCK COMPANY "DATAGROUP" ITS-UA
AS41967	Sumski Telecom Systems Ltd TKS-AS

AS6663	Euroweb Romania S.R.L. TTI-NET
AS8772	NetAssist LLC NLineLLC
AS14840	BR.Digital Telecom AS14840
AS24482	SG.GS SGGS-AS-AP
AS48919	UACITY Ltd. UA-CITY-AS
AS198150	SIACOM JSC SIACOM-AS
AS209823	Enki Multimedia EURL ENKI-AS
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD level86
AS264409	Huge Solucoes Corporativas Ltda AS264409