Orange: landline numbers and carriers
Orange is one of the town-level numbering areas the ACMA register uses under area code 02 (NSW & ACT). The register lists 67 number blocks for it with about 159,100 allocated numbers, held by 20 carriers. A landline that calls you from one of these blocks was issued for the Orange 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 Orange
TELSTRA LIMITED holds the largest share here with 53.4% 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 | 10 | 85,000 | 53.4% |
| OPTUS NETWORKS PTY LIMITED | 16 | 33,100 | 20.8% |
| SYMBIO NETWORKS PTY LTD | 11 | 16,400 | 10.3% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 3 | 8,100 | 5.1% |
| PIPE NETWORKS PTY LIMITED | 3 | 5,000 | 3.1% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 6 | 4,200 | 2.6% |
| NETSIP PTY LTD | 4 | 2,200 | 1.4% |
| OPTUS MOBILE PTY LIMITED | 1 | 2,000 | 1.3% |
| AGILE PTY LTD | 2 | 1,100 | 0.7% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 1,000 | 0.6% |
| ADARGA PTY LTD | 1 | 100 | 0.1% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 100 | 0.1% |
| CHECK TECHNOLOGY GROUP PTY LTD | 1 | 100 | 0.1% |
| GENNEXT ENTERPRISES PTY LTD | 1 | 100 | 0.1% |
| LMGPS LTD | 1 | 100 | 0.1% |
Number blocks registered for Orange
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 |
|---|---|---|
| 0253005600… | 100 | OPTUS NETWORKS PTY LIMITED |
| 0253016100… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0253016200… | 100 | AGILE PTY LTD |
| 0253016400… | 100 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0253016500… | 100 | SYMBIO NETWORKS PTY LTD |
| 0253016600… | 100 | SYMBIO NETWORKS PTY LTD |
| 0253020700… | 100 | VIRTUTEL PTY LTD |
| 0253025000… | 100 | SYMBIO NETWORKS PTY LTD |
| 0253101000… | 300 | OPTUS NETWORKS PTY LIMITED |
| 0253101300… | 3,000 | OPTUS NETWORKS PTY LIMITED |
| 0253104300… | 2,700 | OPTUS NETWORKS PTY LIMITED |
| 0253111000… | 2,000 | OPTUS MOBILE PTY LIMITED |
| 0253171000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0253173000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0253177000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0253178000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0253181000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0253190000… | 1,000 | SYMBIO NETWORKS PTY LTD |
Excerpt: the 18 lowest of 67 allocated blocks (source: ACMA register).
Check a number from Orange
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.