Blackwater: landline numbers and carriers
Blackwater is one of the town-level numbering areas the ACMA register uses under area code 07 (QLD). The register lists 40 number blocks for it with about 28,200 allocated numbers, held by 19 carriers. A landline that calls you from one of these blocks was issued for the Blackwater 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 Blackwater
TELSTRA LIMITED holds the largest share here with 49.6% 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 | 9 | 14,000 | 49.6% |
| SYMBIO NETWORKS PTY LTD | 7 | 4,500 | 16% |
| NETSIP PTY LTD | 4 | 2,200 | 7.8% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 7.1% |
| PIPE NETWORKS PTY LIMITED | 2 | 1,100 | 3.9% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 1,100 | 3.9% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 3.5% |
| OPTUS NETWORKS PTY LIMITED | 1 | 1,000 | 3.5% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 300 | 1.1% |
| ADARGA PTY LTD | 1 | 100 | 0.4% |
| AGILE PTY LTD | 1 | 100 | 0.4% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.4% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.4% |
| LMGPS LTD | 1 | 100 | 0.4% |
| NETERA PTY LTD | 1 | 100 | 0.4% |
Number blocks registered for Blackwater
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 |
|---|---|---|
| 0748005000… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748012900… | 100 | VIRTUTEL PTY LTD |
| 0748017100… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748017200… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748017400… | 100 | AGILE PTY LTD |
| 0748017500… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748017600… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748017700… | 100 | PIPE NETWORKS PTY LIMITED |
| 0748017800… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0748017900… | 100 | SYMBIO NETWORKS PTY LTD |
| 0748046300… | 100 | NETSIP PTY LTD |
| 0748100000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0748260000… | 2,000 | OPTUS MOBILE PTY LIMITED |
| 0748430000… | 1,000 | PIPE NETWORKS PTY LIMITED |
| 0748582900… | 100 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0748601100… | 100 | NETSIP PTY LTD |
| 0748616500… | 100 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0748680600… | 100 | ADARGA PTY LTD |
Excerpt: the 18 lowest of 40 allocated blocks (source: ACMA register).
Check a number from Blackwater
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.