Craigieburn: landline numbers and carriers
Craigieburn is one of the town-level numbering areas the ACMA register uses under area code 03 (VIC & TAS). The register lists 60 number blocks for it with about 254,000 allocated numbers, held by 21 carriers. A landline that calls you from one of these blocks was issued for the Craigieburn 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 Craigieburn
Craigieburn is spread across carriers: TELSTRA LIMITED leads with 31.1% of allocated numbers, and 21 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 | 16 | 79,000 | 31.1% |
| OPTUS NETWORKS PTY LIMITED | 6 | 52,000 | 20.5% |
| SYMBIO NETWORKS PTY LTD | 10 | 23,000 | 9.1% |
| OPTUS MOBILE PTY LIMITED | 4 | 22,000 | 8.7% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 4 | 13,000 | 5.1% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 11,000 | 4.3% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 10,000 | 3.9% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 1 | 10,000 | 3.9% |
| PIPE NETWORKS PTY LIMITED | 1 | 10,000 | 3.9% |
| TPG TELECOM LIMITED | 1 | 10,000 | 3.9% |
| NETSIP PTY LTD | 3 | 3,000 | 1.2% |
| 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 Craigieburn
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 |
|---|---|---|
| 0373000000… | 1,000 | VIRTUTEL PTY LTD |
| 0373003000… | 1,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0373006000… | 1,000 | NETSIP PTY LTD |
| 0373009000… | 1,000 | ADARGA PTY LTD |
| 0373012000… | 1,000 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0373020000… | 1,000 | NETSIP PTY LTD |
| 0373021000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0373022000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0373023000… | 1,000 | WHY PAY MORE 4 LESS PTY LTD |
| 0373030000… | 3,000 | TELSTRA LIMITED |
| 0373038000… | 1,000 | CHECK TECHNOLOGY GROUP PTY LTD |
| 0373042000… | 1,000 | C2A INTERNET.COM.AU PTY. LTD. |
| 0373051000… | 10,000 | SYMBIO NETWORKS PTY LTD |
| 0373061000… | 1,000 | LMGPS LTD |
| 0373064000… | 1,000 | PIVOTEL SATELLITE PTY LIMITED |
| 0373067000… | 1,000 | NETERA PTY LTD |
| 0373070000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0373773000… | 3,000 | TELSTRA LIMITED |
Excerpt: the 18 lowest of 60 allocated blocks (source: ACMA register).
Check a number from Craigieburn
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.