Complete list of the phone numbers in Cessnock NSW.
| From - To | Location | Network |
|---|---|---|
| 02 4000 3000 - 02 4000 3999 | Cessnock NSW 2325 | Chime Communications Pty Ltd |
| 02 4001 4000 - 02 4001 4999 | Cessnock NSW 2325 | Engin Pty Limited |
| 02 4003 4000 - 02 4003 4999 | Cessnock NSW 2325 | Clarinet Australia Pty Ltd |
| 02 4005 6000 - 02 4005 6999 | Cessnock NSW 2325 | Primus Telecommunications Pty Limited |
| 02 4007 5000 - 02 4007 5999 | Cessnock NSW 2325 | Optus Networks Pty Limited |
| 02 4009 4000 - 02 4009 4999 | Cessnock NSW 2325 | Gotalk Limited |
| 02 4011 4000 - 02 4011 4999 | Cessnock NSW 2325 | Redback Communications Pty Ltd |
| 02 4013 5000 - 02 4013 5999 | Cessnock NSW 2325 | Powertel Limited |
| 02 4018 1000 - 02 4018 1999 | Cessnock NSW 2325 | RSL COM Australia Pty Limited |
| 02 4019 9000 - 02 4019 9099 | Cessnock NSW 2325 | Optus Networks Pty Limited |
| 02 4019 9100 - 02 4019 9299 | Cessnock NSW 2325 | Optus Networks Pty Limited |
| 02 4019 9300 - 02 4019 9399 | Cessnock NSW 2325 | Optus Networks Pty Limited |
| 02 4019 9400 - 02 4020 0999 | Cessnock NSW 2325 | Optus Networks Pty Limited |
| 02 4022 0000 - 02 4022 0999 | Cessnock NSW 2325 | Agile Pty Ltd |
| 02 4022 1000 - 02 4022 1999 | Cessnock NSW 2325 | Vocus Pty Ltd |
| 02 4024 1000 - 02 4024 1999 | Cessnock NSW 2325 | Optus Networks Pty Limited |
| 02 4025 3000 - 02 4025 4999 | Cessnock NSW 2325 | Optus Mobile Pty Limited |
| 02 4039 7000 - 02 4039 7999 | Cessnock NSW 2325 | Primus Telecommunications Pty Limited |
| 02 4044 8000 - 02 4044 8999 | Cessnock NSW 2325 | iVox Pty Ltd |
| 02 4050 5000 - 02 4050 6999 | Cessnock NSW 2325 | Telstra Corporation Limited |
| 02 4051 2000 - 02 4051 2999 | Cessnock NSW 2325 | Virtutel Pty Ltd |
| 02 4058 9000 - 02 4058 9999 | Cessnock NSW 2325 | Soul Pattinson Telecommunications Pty Limited |
| 02 4060 9000 - 02 4060 9999 | Cessnock NSW 2325 | NetSIP Pty Ltd |
| 02 4065 5000 - 02 4065 5999 | Cessnock NSW 2325 | Overload Transport Industries Pty. Ltd. |
| 02 4068 5000 - 02 4068 9999 | Cessnock NSW 2325 | Telstra Corporation Limited |
| 02 4069 5000 - 02 4069 5999 | Cessnock NSW 2325 | Net Intellect Pty Ltd |
| 02 4071 5000 - 02 4071 5999 | Cessnock NSW 2325 | Emerge Internet Pty Ltd |
| 02 4073 5000 - 02 4073 5999 | Cessnock NSW 2325 | Why Pay More 4 Less Pty Ltd |
| 02 4075 6000 - 02 4075 6999 | Cessnock NSW 2325 | Style Telco Pty Ltd |
| 02 4909 7000 - 02 4909 8999 | Cessnock NSW 2325 | Telstra Corporation Limited |
| 02 4912 0000 - 02 4912 0999 | Cessnock NSW 2325 | IPTel Pty Limited |
| 02 4990 0000 - 02 4991 9999 | Cessnock NSW 2325 | Telstra Corporation Limited |
| 02 4993 0000 - 02 4993 9999 | Cessnock NSW 2325 | Telstra Corporation Limited |
| 02 4998 0000 - 02 4998 7999 | Cessnock NSW 2325 | Telstra Corporation Limited |
