Eltham: landline numbers and carriers
Eltham is one of the town-level numbering areas the ACMA register uses under area code 03 (VIC & TAS). The register lists 68 number blocks for it with about 387,000 allocated numbers, held by 21 carriers. A landline that calls you from one of these blocks was issued for the Eltham 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 Eltham
TELSTRA LIMITED holds the largest share here with 49.9% 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 | 15 | 193,000 | 49.9% |
| OPTUS NETWORKS PTY LIMITED | 12 | 73,000 | 18.9% |
| OPTUS MOBILE PTY LIMITED | 4 | 22,000 | 5.7% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 5 | 20,000 | 5.2% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 5 | 16,000 | 4.1% |
| CHIME COMMUNICATIONS PTY LTD | 1 | 10,000 | 2.6% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 1 | 10,000 | 2.6% |
| PIPE NETWORKS PTY LIMITED | 1 | 10,000 | 2.6% |
| TPG TELECOM LIMITED | 1 | 10,000 | 2.6% |
| SYMBIO NETWORKS PTY LTD | 9 | 9,000 | 2.3% |
| NETSIP PTY LTD | 3 | 3,000 | 0.8% |
| VIRTUTEL PTY LTD | 2 | 2,000 | 0.5% |
| ADARGA PTY LTD | 1 | 1,000 | 0.3% |
| AGILE PTY LTD | 1 | 1,000 | 0.3% |
| C2A INTERNET.COM.AU PTY. LTD. | 1 | 1,000 | 0.3% |
Number blocks registered for Eltham
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 |
|---|---|---|
| 0384000000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0384001000… | 1,000 | OPTUS MOBILE PTY LIMITED |
| 0384002000… | 1,000 | OPTUS MOBILE PTY LIMITED |
| 0384003000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0384005000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0384006000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0384008000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0384009000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0384010000… | 10,000 | TELSTRA LIMITED |
| 0384020000… | 10,000 | PIPE INTERNATIONAL (AUSTRALIA) PTY LTD |
| 0384040000… | 10,000 | OPTUS MOBILE PTY LIMITED |
| 0384050000… | 10,000 | TELSTRA LIMITED |
| 0384060000… | 10,000 | OPTUS MOBILE PTY LIMITED |
| 0384070000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0384071000… | 1,000 | NETSIP PTY LTD |
| 0384072000… | 1,000 | AGILE PTY LTD |
| 0384073000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0384074000… | 1,000 | SYMBIO NETWORKS PTY LTD |
Excerpt: the 18 lowest of 68 allocated blocks (source: ACMA register).
Check a number from Eltham
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.