Muswellbrook: landline numbers and carriers
Muswellbrook is one of the town-level numbering areas the ACMA register uses under area code 02 (NSW & ACT). The register lists 38 number blocks for it with about 77,000 allocated numbers, held by 21 carriers. A landline that calls you from one of these blocks was issued for the Muswellbrook 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 Muswellbrook
TELSTRA LIMITED holds the largest share here with 54.5% of allocated numbers — with 20 other carriers alongside. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 6 | 42,000 | 54.5% |
| SYMBIO NETWORKS PTY LTD | 7 | 7,000 | 9.1% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 4 | 4,000 | 5.2% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 2 | 4,000 | 5.2% |
| NETSIP PTY LTD | 2 | 2,000 | 2.6% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 2.6% |
| OPTUS NETWORKS PTY LIMITED | 2 | 2,000 | 2.6% |
| ADARGA PTY LTD | 1 | 1,000 | 1.3% |
| AGILE PTY LTD | 1 | 1,000 | 1.3% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 1,000 | 1.3% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 1,000 | 1.3% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 1.3% |
| GENNEXT ENTERPRISES PTY LTD | 1 | 1,000 | 1.3% |
| LMGPS LTD | 1 | 1,000 | 1.3% |
| NETERA PTY LTD | 1 | 1,000 | 1.3% |
Number blocks registered for Muswellbrook
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 |
|---|---|---|
| 0235028000… | 1,000 | NETERA PTY LTD |
| 0235072000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0255042000… | 1,000 | PIPE INTERNATIONAL (AUSTRALIA) PTY LTD |
| 0255064000… | 1,000 | AGILE PTY LTD |
| 0255131000… | 2,000 | OPTUS MOBILE PTY LIMITED |
| 0255171000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0255224000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0255319000… | 1,000 | VIRTUTEL PTY LTD |
| 0255376000… | 1,000 | SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED |
| 0255420000… | 1,000 | NETSIP PTY LTD |
| 0255442000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0255516000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0255575000… | 1,000 | THE TRUSTEE FOR READING FAMILY TRUST |
| 0255603000… | 1,000 | LMGPS LTD |
| 0255634000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0255637000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0255691000… | 1,000 | WHY PAY MORE 4 LESS PTY LTD |
| 0255727000… | 1,000 | NETSIP PTY LTD |
Excerpt: the 18 lowest of 38 allocated blocks (source: ACMA register).
Check a number from Muswellbrook
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.