AS20751 AZISTA GmbH

Austria ASN-AZISTA RIPE 9 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

8,960

IPv6 /48 networks

RPKI

9 valid0 no ROA

Peers and downstreams

Holder

AS name: ASN-AZISTA
Description: AZISTA GmbH AUSTRIA
Organisation: AZISTA GmbH
Registered in: Vienna, Austria
Abuse contact: abuse@azista.net
Assigned: 2001-05-17
Registered: 2002-08-21
Record last changed: 2025-12-12 16:06 UTC

185.136.212.0/22 195.62.26.0/23 78.40.213.0/24 80.64.128.0/21 80.64.136.0/22 83.216.208.0/20 83.216.208.0/21 83.216.216.0/22 83.216.220.0/22

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 75/100

pass	Prefixes covered by valid ROAs 9 of 9 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 17 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@azista.net 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 2025-12-12.	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/20751"><img src="https://ip-fd.net/badge/asn/20751/health.svg" alt="AS20751 network health on IP-FD.net"></a>

Markdown

[![AS20751 network health](https://ip-fd.net/badge/asn/20751/health.svg)](https://ip-fd.net/asn/20751)

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:        AS20751
as-name:        ASN-AZISTA
org:            ORG-FRJ1-RIPE
descr:          AZISTA GmbH
descr:          AUSTRIA
remarks:        ============================================================
remarks:        Upstreams/Partners/Customers/Peerings/Crosslinks
remarks:        ============================================================
remarks:        -------------------------------------------------
remarks:        - Upstreams/Transit -
remarks:        -------------------------------------------------
remarks:        
remarks:        
remarks:        
remarks:        -------------------------------------------------
remarks:        - Interconnects/Duplex/Partners -
remarks:        -------------------------------------------------
remarks:        
remarks:        
remarks:        
remarks:        -------------------------------------------------
remarks:        - Downstreams -
remarks:        -------------------------------------------------
remarks:        
remarks:        
remarks:        -------------------------------------------------
remarks:        
remarks:        ============================================================
remarks:        VIX Peerings / Vienna-Austria
remarks:        ============================================================
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remarks:        ============================================================
remarks:        ---> VIX Route Server IPv4
import-via:     AS1121 from AS-VIX-RS action pref=100; accept ANY
export-via:     AS1121 to AS-VIX-RS announce AS-MAX4EU
remarks:        ---> VIX Route Server IPv6
import-via:     afi ipv6.unicast AS1121 from AS-VIX-RS-V6 action pref=100; accept ANY
export-via:     afi ipv6.unicast AS1121 to AS-VIX-RS-V6 announce AS-MAX4EU
remarks:        ---> fallback VIX all-members IPv4
import-via:     AS1121 from AS-VIX-MEMBERS action pref=100; accept ANY
export-via:     AS1121 to AS-VIX-MEMBERS announce AS-MAX4EU
remarks:        ---> fallback VIX all-members IPv6
import-via:     afi ipv6.unicast AS1121 from AS-VIX-MEMBERS action pref=100; accept ANY
export-via:     afi ipv6.unicast AS1121 to AS-VIX-MEMBERS announce AS-MAX4EU
remarks:        
remarks:        ============================================================
remarks:        REMARKS / INFOS / CHANGES / AUDIT-LOG
remarks:        ============================================================
remarks:        
remarks:        
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admin-c:        AZIS13-RIPE
tech-c:         AST5
remarks:        
remarks:        -------------------------------------------------------------------------
remarks:        This Autonomous System is present at Digital Realty Vienna VIE1-2 (AT)
remarks:        and in the AZISTA DCs VIVI1 & CLB (VIE, AT)
remarks:        
remarks:        Please send peering requests and changes to peering@azista.net
remarks:        Please request offer for transit or housing via office@azista.at
remarks:        
remarks:        We are utilizing BGP route flap dampening according to the
remarks:        policy recommendations of RIPE-580. For more information,
remarks:        see https://www.ripe.net/documents/2620/ripe-580.pdf
remarks:        -------------------------------------------------------------------------
remarks:        We are filtering any BGP announcements of prefixes longer than /24.
remarks:        -------------------------------------------------------------------------
remarks:        
remarks:        BGP COMMUNITY SYSTEM:
remarks:        
remarks:        Community Action
remarks:        =================
remarks:        
remarks:        inbound routes by entry point:
remarks:        ---------------------------------------------------------------------------------------
remarks:        
remarks:        20751:2000 route originated via AS20751 - Infra Vienna (VIE)
remarks:        20751:20751 route originated by AS20751
remarks:        
remarks:        20751:90 route learned from Transit/Upstream
remarks:        20751:110 route learned from Peering
remarks:        20751:120 route learned from Customer
remarks:        
remarks:        20751:2300 route learned from AS21385/TNIB (Vienna)
remarks:        20751:2400 route learned from AS24953/Netplanet (Vienna)
remarks:        20751:2800 route learned from AS1764/Nextlayer (Vienna)
remarks:        20751:2900 route learned from AS48943/kapper.net (Vienna)
remarks:        
remarks:        20751:2500 route learned from VIX (Vienna)
remarks:        20751:2590 route learned from VIX (Vienna) via AS24953
remarks:        20751:2570 route learned from VIX (Vienna) via AS21385
remarks:        20751:2580 route learned from VIX (Vienna) via AS1764
remarks:        
remarks:        20751:2600 route learned from DE-PEERINGS (Germany) via AS21385
remarks:        20751:2610 route learned from DE-CIX (Germany) via AS1764
remarks:        20751:2620 route learned from PEERING-CZ via AS24953
remarks:        
remarks:        20751:25101 route learned from AS25101/euinternet.net (Vienna)
remarks:        20751:47592 route learned from AS47592/ACN Services (Vienna)
remarks:        
remarks:        20751:40xxx route learned from Customer
remarks:        
remarks:        
remarks:        Outbound Routes:
remarks:        ---------------------------------------------------------------------------------------
remarks:        
remarks:        20751:6300 route announced to AS21385/TNIB (Vienna/Munich)
remarks:        20751:6400 route announced to AS24953/Netplanet (Vienna)
remarks:        20751:6800 route announced to AS1764/Nextlayer (Vienna)
remarks:        20751:6900 route announced to AS48943/kapper.net (Vienna)
remarks:        
remarks:        20751:6500 route announced to VIX
remarks:        
remarks:        outbound routes - controllable by transit customer:
remarks:        ---------------------------------------------------------------------------------------
remarks:        
remarks:        20751:5000 do not announce to local Peerings (VIX/Vienna only)
remarks:        20751:5001 do not announce to Upstreams (Global)
remarks:        20751:5002 do not announce to Peerings (except Vienna)
remarks:        
remarks:        n = 0 do not announce prefix
remarks:        1 <= n <= 5 prepend n times to announcement
remarks:        
remarks:        20751:503n do not announce/prepend to AS21385 TNIB
remarks:        20751:504n do not announce/prepend to AS24953 Netplanet
remarks:        20751:508n do not announce/prepend to AS1764 Nextlayer
remarks:        20751:509n do not announce/prepend to AS48943 kapper.net
remarks:        
remarks:        20751:505n do not announce/prepend to VIX-Peers
remarks:        20751:512n do not announce/prepend to VIX-Peers (via AS21385)
remarks:        20751:506n do not announce/prepend to DE-PEERINGS (via AS21385)
remarks:        
remarks:        20751:251n do not announce/prepend to AS25101 euinternet.net (AZISTA)
remarks:        20751:475n do not announce/prepend to AS47592 ACN Services (AZISTA TEST)
remarks:        
remarks:        RPKI route-validation:
remarks:        ---------------------------------------------------------------------------------------
remarks:        
remarks:        20751:9001 RPKI validation-state: valid (matching ROA)
remarks:        20751:9002 RPKI validation-state: invalid (not matching ROA)
remarks:        20751:9003 RPKI validation-state: unknown (no ROA created or lookup error)
remarks:        20751:9004 RPKI validation-state: unverified (not checked)
remarks:        
remarks:        ------------------------------------------------
remarks:        AZISTA Official Web-Site: https://www.azista.at/
remarks:        AZISTA NOC-email: noc@azista.net
remarks:        PeeringDB: https://as20751.peeringdb.com/
remarks:        IRR Record (IXP Peerings): AS-MAX4EU
remarks:        IRR Record (private Peerings): AS-AZISTAPEER
remarks:        IRR Record (Transit IPv4): AS-AZISTA
remarks:        IRR Record (Transit IPv6): AS-AZISTA-V6
remarks:        VIX IP: 193.203.0.81
remarks:        ------------------------------------------------
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ACNETWORKS-MNT
mnt-by:         AZISTA-MNT
created:        2002-08-21T16:17:07Z
last-modified:  2025-12-12T16:06:16Z
source:         RIPE
% 370 routing policy lines (import/export) not shown

Routing data

Updated 1 days ago

Registry record

Fetched 1 days ago 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/20751

const res = await fetch('https://ip-fd.net/api/v1/asn/20751', {
  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/20751', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/20751');
curl_setopt($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/20751", 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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AS14840	BR.Digital Telecom AS14840
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AS24953	NETPLANET GmbH ASN-NETPLANET
AS41327	Fiber Telecom S.p.A. FIBERTELECOM-AS
AS47147	Anexia Cloud Solutions GmbH AS-ANX
AS48362	Tkswf TKSWF-AS
AS263444	Open X Tecnologia Ltda AS263444
AS264409	Huge Solucoes Corporativas Ltda AS264409

AS12971	Internet Viennaweb Service GmbH BIOS-AT
AS25101	AZISTA GmbH ASN-EUINTERNET
AS47592	AZISTA GmbH ACNETWORKS-AS
AS199205	Huemer Data Center GmbH HUEMER-AT

AS3212	Telemach Slovenija d.o.o. TELEMACH
AS6720	Magistrat der Stadt Wien, Magistratsabteilung 01 MAGWIEN
AS12971	Internet Viennaweb Service GmbH BIOS-AT
AS13004	Serbian Open Exchange DOO SOX
AS13030	Init7 (Switzerland) Ltd. INIT7
AS13237	euNetworks GmbH LAMBDANET-AS
AS25101	AZISTA GmbH ASN-EUINTERNET
AS31510	Innsbrucker Kommunalbetriebe AG IKB-AS
AS34288	Kantonsschule Zug AS34288
AS35369	LINZ STROM GAS WAERME GmbH fuer Energiedienstleistungen und Telekommunikation LINZAG-TELEKOM-AS
AS40994	Hohl IT e.U. Alwyzon
AS47592	AZISTA GmbH ACNETWORKS-AS
AS47692	Nessus GmbH NESSUS
AS49544	i3D.net B.V i3Dnet
AS50629	LWLcom GmbH LWLCOM
AS51184	Fonira Telekom GmbH FONIRA
AS59890	Kabel-TV Lampert GmbH & Co KG Kabel-TV-Lampert
AS198150	SIACOM JSC SIACOM-AS
AS199205	Huemer Data Center GmbH HUEMER-AT
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AS215628	Xenox IT & Kommunikations GmbH AS-XENOX-AT