Numbers starting with 03991
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Register allocations
| Range | Type | Status | Holder | Area |
|---|---|---|---|---|
| 0399100000 to 0399109999 | geographic | allocated | Pipe Networks Pty Limited | Melbourne |
| 0399110000 to 0399119999 | geographic | allocated | Telstra Limited | Melbourne |
| 0399120000 to 0399139999 | geographic | allocated | Soul Pattinson Telecommunications Pty Limited | Melbourne |
| 0399140000 to 0399149999 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399150000 to 0399150099 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399150100 to 0399150199 | geographic | allocated | Optus Networks Pty Limited | Clayton |
| 0399150200 to 0399151099 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399151100 to 0399151199 | geographic | allocated | Optus Networks Pty Limited | Croydon |
| 0399151200 to 0399155399 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399155400 to 0399155799 | geographic | allocated | Optus Networks Pty Limited | Clayton |
| 0399155800 to 0399156699 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399156700 to 0399156799 | geographic | allocated | Optus Networks Pty Limited | Ringwood |
| 0399156800 to 0399159999 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399160000 to 0399169999 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399170000 to 0399171999 | geographic | spare | Unassigned | |
| 0399172000 to 0399172999 | geographic | allocated | Optus Networks Pty Limited | Melbourne |
| 0399173000 to 0399179999 | geographic | allocated | Symbio Networks Pty Ltd | Melbourne |
| 0399180000 to 0399199999 | geographic | allocated | Optus Networks Pty Limited | Melbourne |