Autonomous System

AS55803 Hostopia Australia Web Pty Ltd

HostingActiveAustraliaAPNIC

AS55803 (HOSTOPIA-AU) is a hosting network operated by Hostopia Australia Web Pty Ltd in Australia, registered with APNIC. It has 37 IPv4 prefixes with 101,888 addresses and 3 IPv6 prefixes, which makes it the 2,295th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses101,888in 37 prefixes
IPv6 prefixes3≈ 2.4 × 10²⁹ addresses
Size rank#2,295of 82,200 active ASNs
Abuser scoreLow0.09% of its addresses flagged · method

Details

OrganizationHostopia Australia Web Pty Ltd · hosting provider profile
AS nameHOSTOPIA-AU
Websitehostopia.com.au
Country Australia (AU)
Network typeHosting
RegistryAPNIC
Abuse contactabuse@hostopia.com.au
Registered—
Last updated2025-11-20

IPv4 prefixes

37 prefixes · 101,888 addresses
NetworkAddressesFirst – last address
101.0.64.0/1816,384101.0.64.0 – 101.0.127.255
116.90.0.0/1816,384116.90.0.0 – 116.90.63.255
182.160.128.0/1816,384182.160.128.0 – 182.160.191.255
110.173.128.0/198,192110.173.128.0 – 110.173.159.255
111.67.0.0/198,192111.67.0.0 – 111.67.31.255
223.27.0.0/198,192223.27.0.0 – 223.27.31.255
111.118.160.0/204,096111.118.160.0 – 111.118.175.255
125.214.64.0/204,096125.214.64.0 – 125.214.79.255
202.4.224.0/204,096202.4.224.0 – 202.4.239.255
49.156.24.0/212,04849.156.24.0 – 49.156.31.255
103.12.4.0/221,024103.12.4.0 – 103.12.7.255
103.208.216.0/221,024103.208.216.0 – 103.208.219.255
103.237.108.0/221,024103.237.108.0 – 103.237.111.255
103.250.20.0/221,024103.250.20.0 – 103.250.23.255
137.59.248.0/221,024137.59.248.0 – 137.59.251.255
163.53.248.0/221,024163.53.248.0 – 163.53.251.255
175.41.40.0/221,024175.41.40.0 – 175.41.43.255
202.130.44.0/221,024202.130.44.0 – 202.130.47.255
101.0.100.0/23512101.0.100.0 – 101.0.101.255
203.16.60.0/23512203.16.60.0 – 203.16.61.255
203.98.70.0/23512203.98.70.0 – 203.98.71.255
27.123.30.0/2425627.123.30.0 – 27.123.30.255
101.0.76.0/24256101.0.76.0 – 101.0.76.255
103.80.103.0/24256103.80.103.0 – 103.80.103.255
103.141.249.0/24256103.141.249.0 – 103.141.249.255
The 25 largest of 37. The API and the database have all of them.

IPv6 prefixes

3 prefixes
  • 2400:a600::/32
  • 2401:fc00::/32
  • 2402:9400::/32

Query AS55803 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=AS55803&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS55803, with or without a key:

curl "https://api.ipapi.is/?q=101.0.64.1"

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