Diamantina (Ext): landline numbers and carriers
Diamantina (Ext) 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 12,000 allocated numbers, held by 18 carriers. A landline that calls you from one of these blocks was issued for the Diamantina (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 Diamantina (Ext)
Diamantina (Ext) is spread across carriers: SYMBIO NETWORKS PTY LTD leads with 20.8% 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 |
|---|---|---|---|
| SYMBIO NETWORKS PTY LTD | 7 | 2,500 | 20.8% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 16.7% |
| TELSTRA LIMITED | 2 | 2,000 | 16.7% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 1,200 | 10% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 1,100 | 9.2% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 8.3% |
| OPTUS NETWORKS PTY LIMITED | 1 | 1,000 | 8.3% |
| NETSIP PTY LTD | 2 | 200 | 1.7% |
| 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 Diamantina (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 |
|---|---|---|
| 0745083000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0745166300… | 100 | SYMBIO NETWORKS PTY LTD |
| 0745187900… | 100 | VIRTUTEL PTY LTD |
| 0745210100… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0745210200… | 100 | SYMBIO NETWORKS PTY LTD |
| 0745210400… | 100 | SYMBIO NETWORKS PTY LTD |
| 0745210500… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0745210600… | 100 | SYMBIO NETWORKS PTY LTD |
| 0745210700… | 100 | PIPE NETWORKS PTY LIMITED |
| 0745230300… | 100 | NETSIP PTY LTD |
| 0745363000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0745609000… | 2,000 | OPTUS MOBILE PTY LIMITED |
| 0745688000… | 1,000 | TELSTRA LIMITED |
| 0745769000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0745861300… | 100 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0745879100… | 100 | NETSIP PTY LTD |
| 0745899700… | 100 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0745950700… | 100 | ADARGA PTY LTD |
Excerpt: the 18 lowest of 29 allocated blocks (source: ACMA register).
Check a number from Diamantina (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.