AS198050 Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.

Poland ALFA-SYSTEM-AS RIPE 9 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

5,120

IPv6 /48 networks

524,288

RPKI

10 valid0 no ROA

Peers and downstreams

Holder

AS name: ALFA-SYSTEM-AS
Description: Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.
Organisation: Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j.
Registered in: Knurów, Poland
Abuse contact: abuse@alfa-system.pl
Assigned: 2011-09-13
Registered: 2011-09-14
Record last changed: 2024-07-09 05:42 UTC

176.97.24.0/21 194.169.138.0/24 209.162.203.0/24 212.47.33.0/24 5.253.230.0/24 64.190.43.0/24 64.46.124.0/24 91.231.70.0/23 91.231.80.0/22

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 100/100

pass	Prefixes covered by valid ROAs 10 of 10 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@alfa-system.pl is published.	15/15
pass	Publishes a geofeed A geofeed (RFC 8805) tells where the address space is used.	10/10
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 2024-07-09.	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/198050"><img src="https://ip-fd.net/badge/asn/198050/health.svg" alt="AS198050 network health on IP-FD.net"></a>

Markdown

[![AS198050 network health](https://ip-fd.net/badge/asn/198050/health.svg)](https://ip-fd.net/asn/198050)

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

Routing changes

Last 30 days

2026-10-04 19:01 UTC	Neighbour gone	AS6939	upstream
2026-10-04 19:01 UTC	Relationship changed	AS6204	upstream to peer
2026-10-04 19:01 UTC	New neighbour	AS33891	peer
2026-10-04 19:01 UTC	New neighbour	AS29535	upstream
2026-10-04 19:01 UTC	Relationship changed	AS201054	upstream to peer

WHOIS

aut-num:        AS198050
as-name:        ALFA-SYSTEM-AS
org:            ORG-MPTA12-RIPE
admin-c:        LK2211-RIPE
tech-c:         LK2211-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         lir-pl-alfa-system-1-MNT
created:        2011-09-14T14:00:50Z
last-modified:  2024-07-09T05:42:13Z
source:         RIPE
% 4 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/198050

const res = await fetch('https://ip-fd.net/api/v1/asn/198050', {
  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/198050', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/198050');
curl_setopt($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/198050", 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.

AS29535	MIX2_OpenPeering
AS31242	P4 Sp. z o.o. TKPSA-AS

AS6204	TMRC GROUP SRL ZET-NET
AS24482	SG.GS SGGS-AS-AP
AS28917	Fiord Networks, UAB Fiord-AS
AS33891	Core-Backbone GmbH CORE-BACKBONE
AS49544	i3D.net B.V i3Dnet
AS201054	Stowarzyszenie e-Poludnie EPIX-PolMix