Blacktown: landline numbers and carriers
Blacktown is one of the town-level numbering areas the ACMA register uses under area code 02 (NSW & ACT). The register lists 116 number blocks for it with about 1m allocated numbers, held by 21 carriers. A landline that calls you from one of these blocks was issued for the Blacktown 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 Blacktown
TELSTRA LIMITED holds the largest share here with 55.3% 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 | 39 | 576,000 | 55.3% |
| OPTUS NETWORKS PTY LIMITED | 22 | 214,000 | 20.5% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 7 | 59,000 | 5.7% |
| SYMBIO NETWORKS PTY LTD | 14 | 47,000 | 4.5% |
| PIPE NETWORKS PTY LIMITED | 3 | 30,000 | 2.9% |
| TPG TELECOM LIMITED | 3 | 30,000 | 2.9% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 5 | 27,000 | 2.6% |
| OPTUS MOBILE PTY LIMITED | 4 | 22,000 | 2.1% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 10,000 | 1% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 3 | 9,000 | 0.9% |
| NETSIP PTY LTD | 4 | 7,000 | 0.7% |
| VIRTUTEL PTY LTD | 2 | 2,000 | 0.2% |
| 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% |
Number blocks registered for Blacktown
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 |
|---|---|---|
| 0286000000… | 10,000 | OPTUS MOBILE PTY LIMITED |
| 0286020000… | 20,000 | OPTUS NETWORKS PTY LIMITED |
| 0286047000… | 3,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0286050000… | 10,000 | OPTUS MOBILE PTY LIMITED |
| 0286070000… | 5,000 | PIPE INTERNATIONAL (AUSTRALIA) PTY LTD |
| 0286075000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0286079000… | 1,000 | VIRTUTEL PTY LTD |
| 0286080000… | 1,000 | VIRTUTEL PTY LTD |
| 0286082000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0286083000… | 5,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0286088000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0286089000… | 1,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0286090000… | 1,000 | NETSIP PTY LTD |
| 0286091000… | 1,000 | LMGPS LTD |
| 0286092000… | 1,000 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0286093000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0286094000… | 1,000 | WHY PAY MORE 4 LESS PTY LTD |
| 0286095000… | 5,000 | SYMBIO NETWORKS PTY LTD |
Excerpt: the 18 lowest of 116 allocated blocks (source: ACMA register).
Check a number from Blacktown
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.