Baldry: landline numbers and carriers
Baldry is one of the town-level numbering areas the ACMA register uses under area code 02 (NSW & ACT). The register lists 29 number blocks for it with about 16,000 allocated numbers, held by 18 carriers. A landline that calls you from one of these blocks was issued for the Baldry 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 Baldry
Baldry is spread across carriers: SYMBIO NETWORKS PTY LTD leads with 34.4% of allocated numbers, and 18 carriers hold blocks in total. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| SYMBIO NETWORKS PTY LTD | 8 | 5,500 | 34.4% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 3,100 | 19.4% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 12.5% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 1,200 | 7.5% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 6.3% |
| OPTUS NETWORKS PTY LIMITED | 1 | 1,000 | 6.3% |
| TELSTRA LIMITED | 1 | 1,000 | 6.3% |
| NETSIP PTY LTD | 2 | 200 | 1.3% |
| ADARGA PTY LTD | 1 | 100 | 0.6% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.6% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.6% |
| LMGPS LTD | 1 | 100 | 0.6% |
| NETERA PTY LTD | 1 | 100 | 0.6% |
| PIPE NETWORKS PTY LIMITED | 1 | 100 | 0.6% |
| PIVOTEL SATELLITE PTY LIMITED | 1 | 100 | 0.6% |
Number blocks registered for Baldry
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 |
|---|---|---|
| 0253000000… | 100 | SYMBIO NETWORKS PTY LTD |
| 0253000700… | 100 | VIRTUTEL PTY LTD |
| 0253006100… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0253006200… | 100 | SYMBIO NETWORKS PTY LTD |
| 0253006400… | 100 | SYMBIO NETWORKS PTY LTD |
| 0253006500… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0253006600… | 100 | SYMBIO NETWORKS PTY LTD |
| 0253006700… | 100 | PIPE NETWORKS PTY LIMITED |
| 0253024900… | 100 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0253077000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0253159000… | 2,000 | OPTUS MOBILE PTY LIMITED |
| 0253247500… | 100 | NETSIP PTY LTD |
| 0253260800… | 100 | LMGPS LTD |
| 0253266100… | 100 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0253287500… | 100 | NETSIP PTY LTD |
| 0253289000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0253293700… | 100 | WHY PAY MORE 4 LESS PTY LTD |
| 0253309000… | 3,000 | SYMBIO NETWORKS PTY LTD |
Excerpt: the 18 lowest of 29 allocated blocks (source: ACMA register).
Check a number from Baldry
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.