AS21283 A1 Slovenija telekomunikacijske storitve,d.d.

Slovenia A1SI-AS RIPE 18 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

325,632

IPv6 /48 networks

1,048,576

RPKI

21 valid0 no ROA

Peers and downstreams

Holder

AS name: A1SI-AS
Description: A1 Slovenija Smartinska 134b SI-1000 Ljubljana Slovenija https://www.a1.si/
Organisation: A1 Slovenija telekomunikacijske storitve,d.d.
Registered in: Ljubljana, Slovenia
Abuse contact: abuse@a1.si
Assigned: 2001-10-15
Registered: 2002-09-20
Record last changed: 2026-06-11 13:10 UTC

109.239.176.0/20 146.212.0.0/16 185.173.52.0/22 185.28.8.0/22 188.64.24.0/21 212.18.32.0/19 213.157.224.0/19 46.122.0.0/15 46.122.64.0/21 46.122.96.0/21 46.164.0.0/18 62.84.224.0/20 80.95.224.0/20 85.10.0.0/19 85.10.32.0/20 90.157.128.0/17 92.37.0.0/17 94.127.24.0/21

Routing changes

Last 30 days

2026-10-04 08:37 UTC	Neighbour gone	AS25066	downstream
2026-10-04 08:37 UTC	Relationship changed	AS9498	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS43061	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS39120	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS3303	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS28682	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS264409	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS263444	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS22356	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS1853	upstream to peer
2026-10-04 08:37 UTC	Relationship changed	AS14840	upstream to peer

WHOIS

aut-num:        AS21283
org:            ORG-Sd2-RIPE
as-name:        A1SI-AS
descr:          A1 Slovenija
descr:          Smartinska 134b
descr:          SI-1000 Ljubljana
descr:          Slovenija
descr:          https://www.a1.si/
remarks:        -------------------------------------------------------
remarks:        Upstream
remarks:        -------------------------------------------------------
remarks:        -------------------------------------------------------
remarks:        Customers
remarks:        -------------------------------------------------------
remarks:        -------------------------------------------------------
remarks:        -------------------------------------------------------
remarks:        Peering SIX [SI] - 91.220.194.112 2001:7f8:46::2:1283
remarks:        Peering SIX [SI] - (91.220.194.12 2001:7f8:46:0:1:0:2:1283)
remarks:        -------------------------------------------------------
remarks:        -------------------------------------------------------
remarks:        Public peering details:
remarks:        https://www.peeringdb.com/view.php?asn=21283
remarks:        whois -h whois.peeringdb.com AS21283
remarks:        -------------------------------------------------------
admin-c:        SRA17-RIPE
tech-c:         SRA17-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         A1SI-MNT
created:        2002-09-20T12:02:49Z
last-modified:  2026-06-11T13:10:32Z
source:         RIPE
% 354 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/21283

const res = await fetch('https://ip-fd.net/api/v1/asn/21283', {
  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/21283', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/21283');
curl_setopt($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/21283", 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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