Complete list of the phone numbers in Foster VIC.
| From - To | Location | Network |
|---|---|---|
| 03 5600 6000 - 03 5600 8999 | Foster VIC 3960 | IPTel Pty Limited |
| 03 5600 9000 - 03 5600 9999 | Foster VIC 3960 | Engin Pty Limited |
| 03 5605 9000 - 03 5605 9999 | Foster VIC 3960 | Chime Communications Pty Ltd |
| 03 5608 1000 - 03 5608 1999 | Foster VIC 3960 | Clarinet Australia Pty Ltd |
| 03 5609 9000 - 03 5609 9999 | Foster VIC 3960 | Primus Telecommunications Pty Limited |
| 03 5611 7000 - 03 5611 7999 | Foster VIC 3960 | Gotalk Limited |
| 03 5611 9000 - 03 5611 9999 | Foster VIC 3960 | Optus Networks Pty Limited |
| 03 5614 6000 - 03 5614 6999 | Foster VIC 3960 | Redback Communications Pty Ltd |
| 03 5616 6000 - 03 5616 6999 | Foster VIC 3960 | Virtutel Pty Ltd |
| 03 5620 5000 - 03 5620 5999 | Foster VIC 3960 | Primus Telecommunications Pty Limited |
| 03 5631 6000 - 03 5631 6999 | Foster VIC 3960 | iVox Pty Ltd |
| 03 5639 4000 - 03 5639 5999 | Foster VIC 3960 | Optus Mobile Pty Limited |
| 03 5640 4000 - 03 5640 4999 | Foster VIC 3960 | AAPT Limited |
| 03 5641 2000 - 03 5641 2999 | Foster VIC 3960 | Soul Pattinson Telecommunications Pty Limited |
| 03 5642 9000 - 03 5642 9999 | Foster VIC 3960 | NetSIP Pty Ltd |
| 03 5644 6000 - 03 5644 8999 | Foster VIC 3960 | Optus Networks Pty Limited |
| 03 5645 1000 - 03 5645 1999 | Foster VIC 3960 | Net Intellect Pty Ltd |
| 03 5646 4000 - 03 5646 4999 | Foster VIC 3960 | Overload Transport Industries Pty. Ltd. |
| 03 5648 3000 - 03 5648 3999 | Foster VIC 3960 | Emerge Internet Pty Ltd |
| 03 5649 9000 - 03 5649 9999 | Foster VIC 3960 | Why Pay More 4 Less Pty Ltd |
| 03 5651 5000 - 03 5651 5999 | Foster VIC 3960 | Style Telco Pty Ltd |
| 03 5682 0000 - 03 5685 7999 | Foster VIC 3960 | Telstra Corporation Limited |
| 03 5687 0000 - 03 5687 9999 | Foster VIC 3960 | Telstra Corporation Limited |
| 03 5689 0000 - 03 5689 9999 | Foster VIC 3960 | Telstra Corporation Limited |