Cairns: landline numbers and carriers
Cairns is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 103 number blocks for it with about 539,000 allocated numbers, held by 20 carriers. A landline that calls you from one of these blocks was issued for the Cairns 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 Cairns
TELSTRA LIMITED holds the largest share here with 57.5% of allocated numbers — with 19 other carriers alongside. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 24 | 310,000 | 57.5% |
| OPTUS NETWORKS PTY LIMITED | 15 | 64,000 | 11.9% |
| SYMBIO NETWORKS PTY LTD | 19 | 64,000 | 11.9% |
| OPTUS MOBILE PTY LIMITED | 3 | 22,000 | 4.1% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 9 | 19,000 | 3.5% |
| PIPE NETWORKS PTY LIMITED | 10 | 17,000 | 3.2% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 11,000 | 2% |
| AUSTRALIAN COMMUNICATIONS AND MEDIA AUTHORITY | 1 | 10,000 | 1.9% |
| NETSIP PTY LTD | 4 | 6,000 | 1.1% |
| CHIME COMMUNICATIONS PTY LTD | 4 | 4,000 | 0.7% |
| AGILE PTY LTD | 2 | 2,000 | 0.4% |
| NETERA PTY LTD | 2 | 2,000 | 0.4% |
| ADARGA PTY LTD | 1 | 1,000 | 0.2% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 1,000 | 0.2% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 1,000 | 0.2% |
Number blocks registered for Cairns
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 |
|---|---|---|
| 0740000000… | 10,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0740150000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0740151000… | 2,000 | OPTUS NETWORKS PTY LIMITED |
| 0740153000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0740192000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0740196000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0740197000… | 1,000 | PIPE NETWORKS PTY LIMITED |
| 0740205000… | 3,000 | OPTUS NETWORKS PTY LIMITED |
| 0740208000… | 2,000 | SYMBIO NETWORKS PTY LTD |
| 0740212000… | 1,000 | NETSIP PTY LTD |
| 0740279000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0740283000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0740284000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0740300000… | 2,000 | TELSTRA LIMITED |
| 0740307000… | 2,000 | TELSTRA LIMITED |
| 0740310000… | 86,000 | TELSTRA LIMITED |
| 0740398000… | 2,000 | TELSTRA LIMITED |
| 0740400000… | 10,000 | TELSTRA LIMITED |
Excerpt: the 18 lowest of 103 allocated blocks (source: ACMA register).
Check a number from Cairns
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.