Northam: landline numbers and carriers
Northam is one of the town-level numbering areas the ACMA register uses under area code 08 (SA, WA & NT). The register lists 39 number blocks for it with about 44,200 allocated numbers, held by 20 carriers. A landline that calls you from one of these blocks was issued for the Northam 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 Northam
TELSTRA LIMITED holds the largest share here with 54.3% of allocated numbers — with 19 other carriers alongside. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 4 | 24,000 | 54.3% |
| OPTUS NETWORKS PTY LIMITED | 2 | 4,000 | 9% |
| SYMBIO NETWORKS PTY LTD | 8 | 3,500 | 7.9% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 3,100 | 7% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 4 | 2,200 | 5% |
| PIPE NETWORKS PTY LIMITED | 3 | 2,100 | 4.8% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 4.5% |
| NETSIP PTY LTD | 3 | 1,200 | 2.7% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 2.3% |
| ADARGA PTY LTD | 1 | 100 | 0.2% |
| AGILE PTY LTD | 1 | 100 | 0.2% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.2% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.2% |
| GENNEXT ENTERPRISES PTY LTD | 1 | 100 | 0.2% |
| LMGPS LTD | 1 | 100 | 0.2% |
Number blocks registered for Northam
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 |
|---|---|---|
| 0866006000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0866011600… | 100 | VIRTUTEL PTY LTD |
| 0866071200… | 100 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0866077800… | 100 | NETSIP PTY LTD |
| 0866080000… | 1,000 | PIPE NETWORKS PTY LIMITED |
| 0866091900… | 100 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0866093800… | 100 | ADARGA PTY LTD |
| 0866106800… | 100 | WHY PAY MORE 4 LESS PTY LTD |
| 0866111000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0866160900… | 100 | GENNEXT ENTERPRISES PTY LTD |
| 0866175600… | 100 | NETSIP PTY LTD |
| 0866189200… | 100 | CHECK TECHNOLOGY GROUP PTY LTD |
| 0866197000… | 1,000 | PIPE NETWORKS PTY LIMITED |
| 0866209800… | 100 | C2A INTERNET.COM.AU PTY. LTD. |
| 0866223300… | 100 | LMGPS LTD |
| 0866237900… | 100 | PIVOTEL SATELLITE PTY LIMITED |
| 0866251400… | 100 | NETERA PTY LTD |
| 0866254000… | 1,000 | SYMBIO NETWORKS PTY LTD |
Excerpt: the 18 lowest of 39 allocated blocks (source: ACMA register).
Check a number from Northam
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.