Calliope: landline numbers and carriers
Calliope is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 32 number blocks for it with about 19,200 allocated numbers, held by 19 carriers. A landline that calls you from one of these blocks was issued for the Calliope 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 Calliope
TELSTRA LIMITED holds the largest share here with 41.7% of allocated numbers — with 18 other carriers alongside. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 2 | 8,000 | 41.7% |
| SYMBIO NETWORKS PTY LTD | 7 | 2,500 | 13% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 10.4% |
| OPTUS NETWORKS PTY LIMITED | 2 | 2,000 | 10.4% |
| PIPE NETWORKS PTY LIMITED | 2 | 1,100 | 5.7% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 1,100 | 5.7% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 5.2% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 300 | 1.6% |
| NETSIP PTY LTD | 2 | 200 | 1% |
| ADARGA PTY LTD | 1 | 100 | 0.5% |
| AGILE PTY LTD | 1 | 100 | 0.5% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.5% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.5% |
| LMGPS LTD | 1 | 100 | 0.5% |
| NETERA PTY LTD | 1 | 100 | 0.5% |
Number blocks registered for Calliope
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 |
|---|---|---|
| 0748007300… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748018900… | 100 | VIRTUTEL PTY LTD |
| 0748037100… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748037200… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748037400… | 100 | AGILE PTY LTD |
| 0748037500… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748037600… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748037700… | 100 | PIPE NETWORKS PTY LIMITED |
| 0748037800… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748037900… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748049000… | 100 | NETSIP PTY LTD |
| 0748119000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0748278000… | 2,000 | OPTUS MOBILE PTY LIMITED |
| 0748392000… | 2,000 | TELSTRA LIMITED |
| 0748450000… | 1,000 | PIPE NETWORKS PTY LIMITED |
| 0748516000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0748584400… | 100 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0748601600… | 100 | NETSIP PTY LTD |
Excerpt: the 18 lowest of 32 allocated blocks (source: ACMA register).
Check a number from Calliope
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.