Lake Mason (Ext): landline numbers and carriers
Lake Mason (Ext) is one of the town-level numbering areas the ACMA register uses under area code 08 (SA, WA & NT). The register lists 29 number blocks for it with about 13,900 allocated numbers, held by 16 carriers. A landline that calls you from one of these blocks was issued for the Lake Mason (Ext) area — though the line may since have been ported, and caller ID can be spoofed.
Source: ACMA register, data as of 31/08/2026
The carriers in Lake Mason (Ext)
Lake Mason (Ext) is spread across carriers: TELSTRA LIMITED leads with 28.8% of allocated numbers, and 16 carriers hold blocks in total. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 4 | 4,000 | 28.8% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 3,100 | 22.3% |
| SYMBIO NETWORKS PTY LTD | 7 | 2,500 | 18% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 1,200 | 8.6% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 7.2% |
| OPTUS NETWORKS PTY LIMITED | 1 | 1,000 | 7.2% |
| NETSIP PTY LTD | 2 | 200 | 1.4% |
| ADARGA PTY LTD | 1 | 100 | 0.7% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.7% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.7% |
| LMGPS LTD | 1 | 100 | 0.7% |
| NETERA PTY LTD | 1 | 100 | 0.7% |
| PIPE NETWORKS PTY LIMITED | 1 | 100 | 0.7% |
| PIVOTEL SATELLITE PTY LIMITED | 1 | 100 | 0.7% |
| THE TRUSTEE FOR READING FAMILY TRUST | 1 | 100 | 0.7% |
Number blocks registered for Lake Mason (Ext)
The ACMA allocates geographic numbers in blocks tied to this numbering area. Every registered block for this area is allocated to a carrier.
| Block start | Numbers | Held by |
|---|---|---|
| 0899063000… | 3,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0899222000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0899306000… | 100 | SYMBIO NETWORKS PTY LTD |
| 0899306900… | 100 | VIRTUTEL PTY LTD |
| 0899401300… | 100 | NETSIP PTY LTD |
| 0899402800… | 100 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0899447100… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0899447200… | 100 | SYMBIO NETWORKS PTY LTD |
| 0899447400… | 100 | SYMBIO NETWORKS PTY LTD |
| 0899447500… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0899447600… | 100 | SYMBIO NETWORKS PTY LTD |
| 0899447700… | 100 | PIPE NETWORKS PTY LIMITED |
| 0899539000… | 1,000 | TELSTRA LIMITED |
| 0899540000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0899593000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0899632000… | 1,000 | TELSTRA LIMITED |
| 0899635000… | 1,000 | TELSTRA LIMITED |
| 0899673000… | 100 | NETSIP PTY LTD |
Excerpt: the 18 lowest of 29 allocated blocks (source: ACMA register).
Check a number from Lake Mason (Ext)
Worth knowing
- Block data tells you where a line was issued, not who is calling — and scammers routinely spoof local landline numbers to make a call look nearby.
- Learn more: the Australian area codes guide and how caller ID spoofing works.