Waterhouse: landline numbers and carriers
Waterhouse is one of the town-level numbering areas the ACMA register uses under area code 03 (VIC & TAS). The register lists 30 number blocks for it with about 42,000 allocated numbers, held by 20 carriers. A landline that calls you from one of these blocks was issued for the Waterhouse 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 Waterhouse
Waterhouse is spread across carriers: TELSTRA LIMITED leads with 23.8% of allocated numbers, and 20 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 | 1 | 10,000 | 23.8% |
| SYMBIO NETWORKS PTY LTD | 7 | 7,000 | 16.7% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 4,000 | 9.5% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 3 | 3,000 | 7.1% |
| NETSIP PTY LTD | 2 | 2,000 | 4.8% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 4.8% |
| ADARGA PTY LTD | 1 | 1,000 | 2.4% |
| AGILE PTY LTD | 1 | 1,000 | 2.4% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 1,000 | 2.4% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 1,000 | 2.4% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 2.4% |
| GENNEXT ENTERPRISES PTY LTD | 1 | 1,000 | 2.4% |
| LMGPS LTD | 1 | 1,000 | 2.4% |
| NETERA PTY LTD | 1 | 1,000 | 2.4% |
| OPTUS NETWORKS PTY LIMITED | 1 | 1,000 | 2.4% |
Number blocks registered for Waterhouse
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 |
|---|---|---|
| 0363090000… | 3,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0363115000… | 1,000 | CHIME COMMUNICATIONS PTY LTD |
| 0363149000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0363210000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0363422000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0363494000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0363550000… | 10,000 | TELSTRA LIMITED |
| 0363642000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0363667000… | 1,000 | AGILE PTY LTD |
| 0363868000… | 2,000 | OPTUS MOBILE PTY LIMITED |
| 0367036000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0367055000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0367096000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0367119000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0367138000… | 1,000 | PIPE NETWORKS PTY LIMITED |
| 0367186000… | 1,000 | VIRTUTEL PTY LTD |
| 0367217000… | 1,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0367238000… | 1,000 | NETSIP PTY LTD |
Excerpt: the 18 lowest of 30 allocated blocks (source: ACMA register).
Check a number from Waterhouse
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.