Optus Internet Pty Ltd

IPv4 IPv6
Country Australia Australia
Assigned AS AS9623
Updated 02 September 2026

We found 33 IPv4 networks operated by this organization.
Results sorted by network size.

Australia Optus Internet Pty Ltd
Building A, 2nd Floor 1 Lyonpark Road
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Network: OPTUSINTERNET-AU
CIDR: 49.176.0.0/12
IP Range: 49.176.0.0 - 49.191.255.255
Block size: 1,048,576
Australia Optus Internet Pty Ltd
Building A, 2nd Floor 1 Lyonpark Road
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Network: OPTUSINTERNET-AU
CIDR: 49.192.0.0/13
IP Range: 49.192.0.0 - 49.199.255.255
Block size: 524,288
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES Chatswood, Sydney
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Network: OPTUSINTERNET-AU
CIDR: 58.104.0.0/13
IP Range: 58.104.0.0 - 58.111.255.255
Block size: 524,288
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 122.104.0.0/13
IP Range: 122.104.0.0 - 122.111.255.255
Block size: 524,288
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 175.32.0.0/13
IP Range: 175.32.0.0 - 175.39.255.255
Block size: 524,288
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 1.40.0.0/14
IP Range: 1.40.0.0 - 1.43.255.255
Block size: 262,144
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 110.20.0.0/14
IP Range: 110.20.0.0 - 110.23.255.255
Block size: 262,144
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 114.72.0.0/14
IP Range: 114.72.0.0 - 114.75.255.255
Block size: 262,144
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES Chatswood, Sydney
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Network: OPTUSINTERNET-AU
CIDR: 211.28.0.0/14
IP Range: 211.28.0.0 - 211.31.255.255
Block size: 262,144
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES Chatswood, Sydney
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Network: OPTUSINTERNET-AU
CIDR: 220.236.0.0/14
IP Range: 220.236.0.0 - 220.239.255.255
Block size: 262,144
Australia Optus Internet Pty Ltd
Building F, 3rd Floor 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 49.2.0.0/15
IP Range: 49.2.0.0 - 49.3.255.255
Block size: 131,072
Australia Optus Internet Pty Ltd
Building A, 2nd Floor 1 Lyonpark Road
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Network: OPTUSINTERNET-AU
CIDR: 106.70.0.0/15
IP Range: 106.70.0.0 - 106.71.255.255
Block size: 131,072
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 110.32.0.0/15
IP Range: 110.32.0.0 - 110.33.255.255
Block size: 131,072
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 114.76.0.0/15
IP Range: 114.76.0.0 - 114.77.255.255
Block size: 131,072
Australia Optus Internet Pty Ltd
Building A, 2nd Floor 1 Lyonpark Road
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Network: OPTUSINTERNET-AU
CIDR: 42.241.0.0/16
IP Range: 42.241.0.0 - 42.241.255.255
Block size: 65,536
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 114.78.0.0/16
IP Range: 114.78.0.0 - 114.78.255.255
Block size: 65,536
Australia Optus Internet Pty Ltd
Building F, 3rd Floor 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 180.216.0.0/16
IP Range: 180.216.0.0 - 180.216.255.255
Block size: 65,536
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES St Leonards, NSW
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Network: OPTUSINTERNET-AU
CIDR: 210.49.0.0/16
IP Range: 210.49.0.0 - 210.49.255.255
Block size: 65,536
Australia Optus Internet Pty Ltd
Home Network Australia Home Network Australia intial HE and Infrastructure allocations
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Network: OPTUSINTERNET-AU
CIDR: N/A
IP Range: 203.164.96.0 - 203.164.255.255
Block size: 40,960
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES 1 Lyonpark Road, Macquarie Park, NSW - 2113
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Network: OPTUSINTERNET-AU
CIDR: 27.99.0.0/17
IP Range: 27.99.0.0 - 27.99.127.255
Block size: 32,768
Australia Optus Internet Pty Ltd
Building A, 2nd Floor 1 Lyonpark Road
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Network: OPTUSINTERNET-AU
CIDR: 27.253.0.0/17
IP Range: 27.253.0.0 - 27.253.127.255
Block size: 32,768
Australia Optus Internet Pty Ltd
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Network: OPTUSINTERNET-AU
CIDR: 180.216.0.0/17
IP Range: 180.216.0.0 - 180.216.127.255
Block size: 32,768
Australia Optus Internet Pty Ltd
Building A, 2nd Floor 1 Lyonpark Road
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Network: OPTUSINTERNET-AU
CIDR: 42.62.192.0/18
IP Range: 42.62.192.0 - 42.62.255.255
Block size: 16,384
Australia Optus Internet Pty Ltd
Home Network Australia Home Network Australia intial HE and Infrastructure allocations
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Network: OPTUSINTERNET-AU
CIDR: 203.164.0.0/18
IP Range: 203.164.32.0 - 203.164.95.255
Block size: 16,384
Australia Optus Internet Pty Ltd
OPTUS INTERNET - RETAIL INTERNET SERVICES Chatswood, Sydney
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Network: OPTUSINTERNET-AU
CIDR: 58.145.128.0/19
IP Range: 58.145.128.0 - 58.145.159.255
Block size: 8,192
Australia Optus Internet Pty Ltd
Home Network Australia Home Network Australia intial HE and Infrastructure allocations
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Network: OPTUSINTERNET-AU
CIDR: 203.164.0.0/19
IP Range: 203.164.0.0 - 203.164.31.255
Block size: 8,192
Australia Optus Internet Pty Ltd
Home Network Australia Sydney
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Network: OPTUSINTERNET-AU
CIDR: 203.213.128.0/19
IP Range: 203.213.128.0 - 203.213.159.255
Block size: 8,192
Australia Optus Internet Pty Ltd
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Network: OPTUSINTERNET-AU
CIDR: 180.216.128.0/22
IP Range: 180.216.128.0 - 180.216.131.255
Block size: 1,024
Australia Optus Internet Pty Ltd
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Network: OPTUSINTERNET-AU
CIDR: 180.216.132.0/22
IP Range: 180.216.132.0 - 180.216.135.255
Block size: 1,024
Australia Optus Internet Pty Ltd
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Network: OPTUSINTERNET-AU
CIDR: 180.216.136.0/23
IP Range: 180.216.136.0 - 180.216.137.255
Block size: 512
Australia Optus Internet Pty Ltd
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Network: OPTUSINTERNET-AU
CIDR: 180.216.138.0/23
IP Range: 180.216.138.0 - 180.216.139.255
Block size: 512
Australia Optus Internet Pty Ltd
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Network: OPTUSINTERNET-AU
CIDR: 180.216.140.0/23
IP Range: 180.216.140.0 - 180.216.141.255
Block size: 512
Australia Optus Internet Pty Ltd
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Network: OPTUSINTERNET-AU
CIDR: 180.216.255.0/24
IP Range: 180.216.255.0 - 180.216.255.255
Block size: 256

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