Whose number starts with 0483?
The 0483 mobile prefix appears in the ACMA register as held mainly by TELSTRA LIMITED, alongside 1 other range holders. Important: the register names the range holder; after number porting an individual 0483 number can operate on any other network today.
Source: ACMA register, data as of 31/08/2026
The 0483 ranges in the ACMA register
The 0483 window is covered by 5 allocations with a combined capacity of about 800,000 numbers, in the hands of 2 different holders.
| Range start | Numbers | Held by |
|---|---|---|
| 0482400000… | 400,000 | TELSTRA LIMITED |
| 0483600000… | 200,000 | TELSTRA LIMITED |
| 0483800000… | 100,000 | TELSTRA LIMITED |
| 0483900000… | 100,000 | OPTUS MOBILE PTY LIMITED |
Excerpt: the 4 lowest of 5 ranges (source: ACMA register).
No published reports for this prefix yet.
Check a 0483 number
Worth knowing
- The prefix tells you where a line was issued, not who is calling: range data is not personal data, and the number on your screen can be spoofed.
- Report scam calls to Scamwatch; unwanted telemarketing can be reported to the ACMA once your number has been on the Do Not Call Register for 30 days.
- Learn more: Who called me from this number? and Which carrier owns which mobile prefix?