The Caves: landline numbers and carriers
The Caves is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 29 number blocks for it with about 13,100 allocated numbers, held by 18 carriers. A landline that calls you from one of these blocks was issued for the The Caves 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 The Caves
The Caves is spread across carriers: TELSTRA LIMITED leads with 38.2% of allocated numbers, and 18 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 | 3 | 5,000 | 38.2% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 15.3% |
| SYMBIO NETWORKS PTY LTD | 6 | 1,500 | 11.5% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 1,100 | 8.4% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 7.6% |
| OPTUS NETWORKS PTY LIMITED | 1 | 1,000 | 7.6% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 300 | 2.3% |
| NETSIP PTY LTD | 2 | 200 | 1.5% |
| ADARGA PTY LTD | 1 | 100 | 0.8% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.8% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.8% |
| LMGPS LTD | 1 | 100 | 0.8% |
| NETERA PTY LTD | 1 | 100 | 0.8% |
| PIPE NETWORKS PTY LIMITED | 1 | 100 | 0.8% |
| PIVOTEL SATELLITE PTY LIMITED | 1 | 100 | 0.8% |
Number blocks registered for The Caves
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 |
|---|---|---|
| 0748034000… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748072900… | 100 | VIRTUTEL PTY LTD |
| 0748075300… | 100 | NETSIP PTY LTD |
| 0748077100… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748077200… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748077400… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748077500… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748077600… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748077700… | 100 | PIPE NETWORKS PTY LIMITED |
| 0748077800… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748156000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0748363000… | 1,000 | TELSTRA LIMITED |
| 0748570000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0748589700… | 100 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0748657300… | 100 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0748672100… | 100 | NETSIP PTY LTD |
| 0748686400… | 100 | ADARGA PTY LTD |
| 0748705700… | 100 | WHY PAY MORE 4 LESS PTY LTD |
Excerpt: the 18 lowest of 29 allocated blocks (source: ACMA register).
Check a number from The Caves
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.