Southport: landline numbers and carriers
Southport is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 187 number blocks for it with about 1.1m allocated numbers, held by 21 carriers. A landline that calls you from one of these blocks was issued for the Southport 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 Southport
TELSTRA LIMITED holds the largest share here with 56.9% 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 | 48 | 609,000 | 56.9% |
| OPTUS NETWORKS PTY LIMITED | 39 | 145,300 | 13.6% |
| SYMBIO NETWORKS PTY LTD | 37 | 75,700 | 7.1% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 13 | 60,000 | 5.6% |
| PIPE NETWORKS PTY LIMITED | 12 | 55,000 | 5.1% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 5 | 43,000 | 4% |
| OPTUS MOBILE PTY LIMITED | 3 | 22,000 | 2.1% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 2 | 20,000 | 1.9% |
| NETSIP PTY LTD | 9 | 18,000 | 1.7% |
| VERIZON AUSTRALIA PTY LIMITED | 5 | 7,000 | 0.7% |
| CHIME COMMUNICATIONS PTY LTD | 4 | 5,000 | 0.5% |
| ADARGA PTY LTD | 1 | 1,000 | 0.1% |
| AGILE PTY LTD | 1 | 1,000 | 0.1% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 1,000 | 0.1% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 1,000 | 0.1% |
Number blocks registered for Southport
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 |
|---|---|---|
| 0755000000… | 30,000 | TELSTRA LIMITED |
| 0755030000… | 10,000 | TELSTRA LIMITED |
| 0755040000… | 10,000 | TELSTRA LIMITED |
| 0755090000… | 10,000 | TELSTRA LIMITED |
| 0755100000… | 10,000 | TELSTRA LIMITED |
| 0755110000… | 10,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0755120000… | 10,000 | PIPE NETWORKS PTY LIMITED |
| 0755140000… | 10,000 | TELSTRA LIMITED |
| 0755157000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0755158000… | 1,000 | PIPE NETWORKS PTY LIMITED |
| 0755187000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0755190000… | 10,000 | TELSTRA LIMITED |
| 0755260000… | 10,000 | TELSTRA LIMITED |
| 0755270000… | 10,000 | TELSTRA LIMITED |
| 0755280000… | 10,000 | TELSTRA LIMITED |
| 0755290000… | 12,000 | TELSTRA LIMITED |
| 0755308000… | 22,000 | TELSTRA LIMITED |
| 0755331000… | 2,000 | TELSTRA LIMITED |
Excerpt: the 18 lowest of 187 allocated blocks (source: ACMA register).
Check a number from Southport
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.