Autonomous System

AS1851 Adelaide University

EducationActiveAustraliaAPNIC

AS1851 (ADELAIDE-UNIVERSITY-AS-AP) is an education network operated by Adelaide University in Australia, registered with APNIC. It has 9 IPv4 prefixes with 135,168 addresses and 1 IPv6 prefix, which makes it the 1,762nd largest of 82,283 active autonomous systems by IPv4 space.

IPv4 addresses135,168in 9 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#1,762of 82,283 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationAdelaide University
AS nameADELAIDE-UNIVERSITY-AS-AP
Websiteadelaide.edu.au
Country Australia (AU)
Network typeEducation
RegistryAPNIC
Abuse contactnoc@adelaide.edu.au
Registered—
Last updated2025-11-19

IPv4 prefixes

9 prefixes · 135,168 addresses
NetworkAddressesFirst – last address
129.127.0.0/1665,536129.127.0.0 – 129.127.255.255
130.220.0.0/1665,536130.220.0.0 – 130.220.255.255
43.241.200.0/221,02443.241.200.0 – 43.241.203.255
45.121.132.0/221,02445.121.132.0 – 45.121.135.255
103.37.128.0/221,024103.37.128.0 – 103.37.131.255
192.43.227.0/24256192.43.227.0 – 192.43.227.255
192.43.228.0/24256192.43.228.0 – 192.43.228.255
192.160.71.0/24256192.160.71.0 – 192.160.71.255
203.26.136.0/24256203.26.136.0 – 203.26.136.255

IPv6 prefixes

1 prefix
  • 2403:7900::/32

Query AS1851 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=AS1851&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS1851, with or without a key:

curl "https://api.ipapi.is/?q=129.127.0.1"

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