Autonomous System

AS5403 APA-IT Informations Technologie G.m.b.H

BusinessActiveAustriaRIPE

AS5403 (AS5403) is a business network operated by APA-IT Informations Technologie G.m.b.H in Austria, registered with RIPE. It has 55 IPv4 prefixes with 98,560 addresses and 1 IPv6 prefix, which makes it the 2,350th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses98,560in 55 prefixes
IPv6 prefixes1≈ 6.3 × 10²⁹ addresses
Size rank#2,350of 82,200 active ASNs
Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationAPA-IT Informations Technologie G.m.b.H
AS nameAS5403
Websiteapa-it.at
Country Austria (AT)
Network typeBusiness
RegistryRIPE
Abuse contactabuse@apa.at
Registered2002-05-03
Last updated2026-01-09

IPv4 prefixes

55 prefixes · 98,560 addresses
NetworkAddressesFirst – last address
194.232.0.0/1665,536194.232.0.0 – 194.232.255.255
194.158.128.0/198,192194.158.128.0 – 194.158.159.255
192.164.176.0/204,096192.164.176.0 – 192.164.191.255
192.164.192.0/204,096192.164.192.0 – 192.164.207.255
185.85.28.0/221,024185.85.28.0 – 185.85.31.255
193.186.188.0/221,024193.186.188.0 – 193.186.191.255
194.107.60.0/221,024194.107.60.0 – 194.107.63.255
194.107.64.0/221,024194.107.64.0 – 194.107.67.255
194.107.68.0/23512194.107.68.0 – 194.107.69.255
194.232.142.0/23512194.232.142.0 – 194.232.143.255
185.85.28.0/24256185.85.28.0 – 185.85.28.255
185.85.29.0/24256185.85.29.0 – 185.85.29.255
192.5.162.0/24256192.5.162.0 – 192.5.162.255
192.111.104.0/24256192.111.104.0 – 192.111.104.255
192.152.54.0/24256192.152.54.0 – 192.152.54.255
192.164.176.0/24256192.164.176.0 – 192.164.176.255
192.164.178.0/24256192.164.178.0 – 192.164.178.255
192.164.179.0/24256192.164.179.0 – 192.164.179.255
192.164.180.0/24256192.164.180.0 – 192.164.180.255
192.164.182.0/24256192.164.182.0 – 192.164.182.255
192.164.183.0/24256192.164.183.0 – 192.164.183.255
192.164.184.0/24256192.164.184.0 – 192.164.184.255
192.164.185.0/24256192.164.185.0 – 192.164.185.255
192.164.186.0/24256192.164.186.0 – 192.164.186.255
192.164.187.0/24256192.164.187.0 – 192.164.187.255
The 25 largest of 55. The API and the database have all of them.

IPv6 prefixes

1 prefix
  • 2a01:468::/29

Query AS5403 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS5403&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS5403, with or without a key:

curl "https://api.ipapi.is/?q=194.232.0.1"

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