Complete list of the phone numbers in Helensburgh NSW.
| From - To | Location | Network |
|---|---|---|
| 02 4202 0000 - 02 4202 2999 | Helensburgh NSW 2508 | IPTel Pty Limited |
| 02 4202 7000 - 02 4202 7999 | Helensburgh NSW 2508 | Engin Pty Limited |
| 02 4203 0000 - 02 4203 0999 | Helensburgh NSW 2508 | Gotalk Limited |
| 02 4203 6000 - 02 4203 6999 | Helensburgh NSW 2508 | Agile Pty Ltd |
| 02 4204 0000 - 02 4204 0999 | Helensburgh NSW 2508 | Gotalk Limited |
| 02 4204 3000 - 02 4204 4999 | Helensburgh NSW 2508 | Optus Mobile Pty Limited |
| 02 4207 5000 - 02 4207 5999 | Helensburgh NSW 2508 | Primus Telecommunications Pty Limited |
| 02 4207 6000 - 02 4207 6999 | Helensburgh NSW 2508 | AAPT Limited |
| 02 4207 8000 - 02 4207 8999 | Helensburgh NSW 2508 | iVox Pty Ltd |
| 02 4208 4000 - 02 4208 4999 | Helensburgh NSW 2508 | Virtutel Pty Ltd |
| 02 4208 8000 - 02 4208 8999 | Helensburgh NSW 2508 | Soul Pattinson Telecommunications Pty Limited |
| 02 4209 1000 - 02 4209 1999 | Helensburgh NSW 2508 | NetSIP Pty Ltd |
| 02 4209 7000 - 02 4209 7999 | Helensburgh NSW 2508 | Overload Transport Industries Pty. Ltd. |
| 02 4210 1000 - 02 4210 1999 | Helensburgh NSW 2508 | Net Intellect Pty Ltd |
| 02 4210 4000 - 02 4210 4999 | Helensburgh NSW 2508 | Emerge Internet Pty Ltd |
| 02 4214 5000 - 02 4214 5999 | Helensburgh NSW 2508 | Why Pay More 4 Less Pty Ltd |
| 02 4214 8000 - 02 4214 8999 | Helensburgh NSW 2508 | Style Telco Pty Ltd |
| 02 4238 0000 - 02 4238 0999 | Helensburgh NSW 2508 | Redback Communications Pty Ltd |
| 02 4243 2000 - 02 4243 2999 | Helensburgh NSW 2508 | RSL COM Australia Pty Limited |
| 02 4255 0000 - 02 4255 0999 | Helensburgh NSW 2508 | Telstra Corporation Limited |
| 02 4263 2000 - 02 4263 2999 | Helensburgh NSW 2508 | Chime Communications Pty Ltd |
| 02 4263 5000 - 02 4263 5999 | Helensburgh NSW 2508 | Clarinet Australia Pty Ltd |
| 02 4263 8000 - 02 4263 8999 | Helensburgh NSW 2508 | Primus Telecommunications Pty Limited |
| 02 4291 0000 - 02 4291 9999 | Helensburgh NSW 2508 | Telstra Corporation Limited |
| 02 4292 0000 - 02 4292 9999 | Helensburgh NSW 2508 | Hutchison Telecommunications (Australia) Limited |
| 02 4293 0000 - 02 4293 0999 | Helensburgh NSW 2508 | Optus Networks Pty Limited |
| 02 4294 0000 - 02 4294 9999 | Helensburgh NSW 2508 | Telstra Corporation Limited |
| 02 4299 0000 - 02 4299 9999 | Helensburgh NSW 2508 | Singtel Optus Pty Limited |
