Caloundra: landline numbers and carriers
Caloundra is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 78 number blocks for it with about 243,000 allocated numbers, held by 21 carriers. A landline that calls you from one of these blocks was issued for the Caloundra 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 Caloundra
TELSTRA LIMITED holds the largest share here with 50.6% of allocated numbers — with 20 other carriers alongside. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 20 | 123,000 | 50.6% |
| OPTUS NETWORKS PTY LIMITED | 9 | 37,000 | 15.2% |
| OPTUS MOBILE PTY LIMITED | 4 | 25,000 | 10.3% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 7 | 13,000 | 5.3% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 6 | 11,000 | 4.5% |
| SYMBIO NETWORKS PTY LTD | 10 | 10,000 | 4.1% |
| PIPE NETWORKS PTY LIMITED | 3 | 5,000 | 2.1% |
| CHIME COMMUNICATIONS PTY LTD | 3 | 3,000 | 1.2% |
| NETERA PTY LTD | 2 | 2,000 | 0.8% |
| NETSIP PTY LTD | 2 | 2,000 | 0.8% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 2 | 2,000 | 0.8% |
| ADARGA PTY LTD | 1 | 1,000 | 0.4% |
| AGILE PTY LTD | 1 | 1,000 | 0.4% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 1,000 | 0.4% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 1,000 | 0.4% |
Number blocks registered for Caloundra
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 |
|---|---|---|
| 0752004000… | 1,000 | VIRTUTEL PTY LTD |
| 0752020000… | 15,000 | OPTUS NETWORKS PTY LIMITED |
| 0752054000… | 1,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0752089000… | 1,000 | NETSIP PTY LTD |
| 0752124000… | 2,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0752126000… | 5,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0752136000… | 1,000 | ADARGA PTY LTD |
| 0752164000… | 1,000 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0752212000… | 1,000 | GOLOGIC GROUP PTY LTD |
| 0752215000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0752224000… | 1,000 | NETSIP PTY LTD |
| 0752246000… | 1,000 | WHY PAY MORE 4 LESS PTY LTD |
| 0752304000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0752311000… | 2,000 | TELSTRA LIMITED |
| 0752313000… | 5,000 | TELSTRA LIMITED |
| 0752334000… | 1,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0752340000… | 2,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0752420000… | 1,000 | CHECK TECHNOLOGY GROUP PTY LTD |
Excerpt: the 18 lowest of 78 allocated blocks (source: ACMA register).
Check a number from Caloundra
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.