Newcastle: landline numbers and carriers
Newcastle is one of the town-level numbering areas the ACMA register uses under area code 02 (NSW & ACT). The register lists 144 number blocks for it with about 1m allocated numbers, held by 22 carriers. A landline that calls you from one of these blocks was issued for the Newcastle 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 Newcastle
TELSTRA LIMITED holds the largest share here with 60.2% of allocated numbers — with 21 other carriers alongside. The register names the range holder; individual numbers may operate on another network after porting.
| Carrier | Blocks | Numbers | Share |
|---|---|---|---|
| TELSTRA LIMITED | 25 | 621,000 | 60.2% |
| OPTUS NETWORKS PTY LIMITED | 25 | 129,800 | 12.6% |
| SYMBIO NETWORKS PTY LTD | 32 | 82,200 | 8% |
| PIPE NETWORKS PTY LIMITED | 12 | 50,000 | 4.8% |
| PRIMUS TELECOMMUNICATIONS PTY LIMITED | 10 | 29,000 | 2.8% |
| NETSIP PTY LTD | 9 | 25,000 | 2.4% |
| SOUL PATTINSON TELECOMMUNICATIONS PTY LIMITED | 5 | 25,000 | 2.4% |
| OPTUS MOBILE PTY LIMITED | 3 | 22,000 | 2.1% |
| PIPE INTERNATIONAL (AUSTRALIA) PTY LTD | 1 | 10,000 | 1% |
| TPG TELECOM LIMITED | 1 | 10,000 | 1% |
| VERIZON AUSTRALIA PTY LIMITED | 3 | 9,000 | 0.9% |
| CHIME COMMUNICATIONS PTY LTD | 6 | 7,000 | 0.7% |
| AGILE PTY LTD | 2 | 2,000 | 0.2% |
| NETERA PTY LTD | 2 | 2,000 | 0.2% |
| ADARGA PTY LTD | 1 | 1,000 | 0.1% |
Number blocks registered for Newcastle
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 |
|---|---|---|
| 0240010000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0240024000… | 1,000 | PRIMUS TELECOMMUNICATIONS PTY LIMITED |
| 0240033000… | 5,000 | SYMBIO NETWORKS PTY LTD |
| 0240046000… | 4,000 | TELSTRA LIMITED |
| 0240052000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0240091000… | 1,000 | OPTUS NETWORKS PTY LIMITED |
| 0240111000… | 5,000 | PIPE NETWORKS PTY LIMITED |
| 0240131000… | 3,000 | OPTUS NETWORKS PTY LIMITED |
| 0240134000… | 1,000 | SYMBIO NETWORKS PTY LTD |
| 0240140000… | 10,000 | TELSTRA LIMITED |
| 0240160000… | 200 | OPTUS NETWORKS PTY LIMITED |
| 0240160200… | 200 | SYMBIO NETWORKS PTY LTD |
| 0240160400… | 9,000 | OPTUS NETWORKS PTY LIMITED |
| 0240169400… | 400 | SYMBIO NETWORKS PTY LTD |
| 0240169800… | 200 | OPTUS NETWORKS PTY LIMITED |
| 0240170000… | 100 | VERIZON AUSTRALIA PTY LIMITED |
| 0240170100… | 500 | SYMBIO NETWORKS PTY LTD |
| 0240170600… | 300 | VERIZON AUSTRALIA PTY LIMITED |
Excerpt: the 18 lowest of 144 allocated blocks (source: ACMA register).
Check a number from Newcastle
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.