Sunbury: landline numbers and carriers
Sunbury is one of the town-level numbering areas the ACMA register uses under area code 03 (VIC & TAS). The register lists 57 number blocks for it with about 252,000 allocated numbers, held by 22 carriers. A landline that calls you from one of these blocks was issued for the Sunbury 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 Sunbury
Sunbury is spread across carriers: TELSTRA LIMITED leads with 34.1% of allocated numbers, and 22 carriers hold blocks in total. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 13 | 86,000 | 34.1% |
| OPTUS NETWORKS PTY LIMITED | 5 | 34,000 | 13.5% |
| SYMBIO NETWORKS PTY LTD | 10 | 29,000 | 11.5% |
| OPTUS MOBILE PTY LIMITED | 4 | 22,000 | 8.7% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 3 | 14,000 | 5.6% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 4 | 13,000 | 5.2% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 10,000 | 4% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 1 | 10,000 | 4% |
| PIPE NETWORKS PTY LIMITED | 1 | 10,000 | 4% |
| TPG TELECOM LIMITED | 1 | 10,000 | 4% |
| NETSIP PTY LTD | 2 | 2,000 | 0.8% |
| VIRTUTEL PTY LTD | 2 | 2,000 | 0.8% |
| ADARGA PTY LTD | 1 | 1,000 | 0.4% |
| AGILE PTY LTD | 1 | 1,000 | 0.4% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 1,000 | 0.4% |
Number blocks registered for Sunbury
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 |
|---|---|---|
| 0380000000… | 3,000 | OPTUS NETWORKS PTY LIMITED |
| 0380003000… | 2,000 | SYMBIO NETWORKS PTY LTD |
| 0380005000… | 1,000 | NETSIP PTY LTD |
| 0380007000… | 1,000 | CHECK TECHNOLOGY GROUP PTY LTD |
| 0380010000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0380014000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0380016000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0380018000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0380019000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0380020000… | 10,000 | OPTUS MOBILE PTY LIMITED |
| 0380040000… | 10,000 | OPTUS MOBILE PTY LIMITED |
| 0380061000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0380063000… | 1,000 | VIRTUTEL PTY LTD |
| 0380066000… | 1,000 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0380070000… | 1,000 | WHY PAY MORE 4 LESS PTY LTD |
| 0380072000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0380074000… | 3,000 | TELSTRA LIMITED |
| 0380082000… | 1,000 | GENNEXT ENTERPRISES PTY LTD |
Excerpt: the 18 lowest of 57 allocated blocks (source: ACMA register).
Check a number from Sunbury
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.