Numbers starting with 02531
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Register allocations
| Range | Type | Status | Holder | Area |
|---|---|---|---|---|
| 0253100000 to 0253100999 | geographic | allocated | Optus Networks Pty Limited | Young |
| 0253101000 to 0253101299 | geographic | allocated | Optus Networks Pty Limited | Orange |
| 0253101300 to 0253104299 | geographic | allocated | Optus Networks Pty Limited | Orange |
| 0253104300 to 0253106999 | geographic | allocated | Optus Networks Pty Limited | Orange |
| 0253107000 to 0253108999 | geographic | allocated | Optus Mobile Pty Limited | Millthorpe |
| 0253109000 to 0253110999 | geographic | allocated | Optus Mobile Pty Limited | Lyndhurst |
| 0253111000 to 0253112999 | geographic | allocated | Optus Mobile Pty Limited | Orange |
| 0253113000 to 0253114999 | geographic | allocated | Optus Mobile Pty Limited | Woodstock (NSW) |
| 0253115000 to 0253116999 | geographic | allocated | Optus Mobile Pty Limited | Canowindra |
| 0253117000 to 0253118999 | geographic | allocated | Optus Mobile Pty Limited | Caragabal |
| 0253119000 to 0253120999 | geographic | allocated | Optus Mobile Pty Limited | Merriganowry |
| 0253121000 to 0253122999 | geographic | allocated | Optus Mobile Pty Limited | Ooma |
| 0253123000 to 0253124999 | geographic | allocated | Optus Mobile Pty Limited | Quandialla |
| 0253125000 to 0253126999 | geographic | allocated | Optus Mobile Pty Limited | Reids Flat |
| 0253127000 to 0253128999 | geographic | allocated | Optus Mobile Pty Limited | Tyagong |
| 0253129000 to 0253130999 | geographic | allocated | Optus Mobile Pty Limited | Cassilis |
| 0253131000 to 0253132999 | geographic | allocated | Optus Mobile Pty Limited | Coolah |
| 0253133000 to 0253134999 | geographic | allocated | Optus Mobile Pty Limited | Gulgong |
| 0253135000 to 0253136999 | geographic | allocated | Optus Mobile Pty Limited | Laheys Creek |
| 0253137000 to 0253138999 | geographic | allocated | Optus Mobile Pty Limited | Leadville |
| 0253139000 to 0253140999 | geographic | allocated | Optus Mobile Pty Limited | Lue |
| 0253141000 to 0253142999 | geographic | allocated | Optus Mobile Pty Limited | Twelve Mile |
| 0253143000 to 0253144999 | geographic | allocated | Optus Mobile Pty Limited | Windeyer |
| 0253145000 to 0253146999 | geographic | allocated | Optus Mobile Pty Limited | Wollar |
| 0253147000 to 0253148999 | geographic | allocated | Optus Mobile Pty Limited | Glen Davis |