Area code 03 – VIC & TAS
The 03 area code covers VIC & TAS (the South East charging region). The ACMA register lists 16,887 number blocks under it with about 34.2m allocated numbers, split between 32 carriers across 475 town-level numbering areas. Calls from this prefix normally come from VIC & TAS landlines; the number on your screen can still be spoofed and doesn't prove the location.
Source: ACMA register, data as of 31/08/2026
The carriers behind 03 numbers
The largest block holder is — as in most of the country — the incumbent Telstra with 43.9% of allocated numbers; alongside it, 31 other carriers hold their own blocks, from the NBN-era challengers to VoIP providers. Important: the register names the range holder; individual numbers may have been ported and operate on another network today.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 1,841 | 15m | 43.9% |
| OPTUS NETWORKS PTY LIMITED | 1,056 | 4.1m | 11.9% |
| SYMBIO NETWORKS PTY LTD | 3,362 | 3.4m | 10.1% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 1,013 | 2.1m | 6.2% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 1,335 | 1.9m | 5.5% |
| OPTUS MOBILE PTY LIMITED | 534 | 1.3m | 3.9% |
| PIPE NETWORKS PTY LIMITED | 636 | 1m | 2.9% |
| NETSIP PTY LTD | 1,036 | 827,000 | 2.4% |
| CHIME COMMUNICATIONS PTY LTD | 526 | 723,000 | 2.1% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 52 | 422,000 | 1.2% |
| TPG TELECOM LIMITED | 42 | 368,000 | 1.1% |
| VIRTUTEL PTY LTD | 489 | 309,000 | 0.9% |
Showing the 12 largest of 32 carriers with allocations under this area code, by allocated numbers.
How the 03 area code is carved up
The ACMA allocates geographic numbers in blocks — mostly 1,000-number blocks tied to a numbering area, the town-level zones the register uses. 699 of the 16,887blocks in the register are not in "Allocated" state — surveyed capacity that isn't live.
| Numbering area | Blocks | Carriers |
|---|---|---|
| Melbourne | 706 | 31 |
| Hobart | 122 | 19 |
| Clayton | 115 | 21 |
| Dandenong | 115 | 21 |
| Geelong | 100 | 23 |
| Ballarat | 99 | 20 |
| Ringwood | 96 | 22 |
| Launceston | 85 | 20 |
| Bendigo | 81 | 20 |
| Croydon | 76 | 21 |
| Eltham | 68 | 21 |
| Werribee | 68 | 22 |
| Sydenham | 63 | 22 |
| Craigieburn | 60 | 21 |
| Mildura | 58 | 19 |
| Shepparton | 57 | 20 |
| Sunbury | 57 | 22 |
| Mornington | 52 | 19 |
| Morwell | 52 | 20 |
| Point Cook | 52 | 22 |
The 20 busiest of 475 numbering areas under 03 — browse them all.
No published reports for this prefix yet.
Check a 03 number
Worth knowing
- The prefix tells you where a line was issued, not who is calling: range data is not personal data, and the number on your screen can be spoofed.
- Report scam calls to Scamwatch; unwanted telemarketing can be reported to the ACMA once your number has been on the Do Not Call Register for 30 days.
- Learn more: Who called me from this number? and Which carrier owns which mobile prefix?