Whose number starts with 0483?
The 0483 mobile prefix appears in the ACMA register as held mainly by TELSTRA LIMITED (87.5% of the window's 800,000 allocated numbers), alongside OPTUS MOBILE PTY LIMITED (12.5%). The earliest allocation in 0483 is dated 11 June 2019, the most recent 15 September 2025.
Source: ACMA register, data as of 16/10/2026
The story of 0483
0483 is mostly Telstra: the arc that starts at 0482 400 continues to 0483 399 (allocated 11 June 2019), followed by 0483 600–799 (15 September 2025) and 0483 8xx (8 January 2020). Optus Mobile holds the single top block 0483 9xx, allocated 8 April 2022, and 0483 400–599 was still spare at the last register import.
The 0483 ranges in the ACMA register
The 0483 window is covered by 4 allocations with a combined capacity of about 800,000 numbers, in the hands of 2 different holders. None of the ranges has ever been transferred: the original allocatee is still the holder of record.
| Range | Numbers | Original allocatee | Current holder | Allocated | Transferred |
|---|---|---|---|---|---|
| 0482400000–0483399999 | 400,000 in 0483 (range: 1m) | TELSTRA LIMITED | TELSTRA LIMITED | 11/06/2019 | — |
| 0483400000–0483599999 | 200,000 | — | not allocated | — | — |
| 0483600000–0483799999 | 200,000 | TELSTRA LIMITED | TELSTRA LIMITED | 15/09/2025 | — |
| 0483800000–0483899999 | 100,000 | TELSTRA LIMITED | TELSTRA LIMITED | 08/01/2020 | — |
| 0483900000–0483999999 | 100,000 | OPTUS MOBILE PTY LIMITED | OPTUS MOBILE PTY LIMITED | 08/04/2022 | — |
- 0482400000–0483399999 (1m numbers, of which 400,000 fall inside 0483) was allocated on 11 June 2019 to TELSTRA LIMITED and has stayed with the original allocatee; the register range runs from 0482 into 0483.
- 0483600000–0483799999 (200,000 numbers) was allocated on 15 September 2025 to TELSTRA LIMITED and has stayed with the original allocatee.
- 0483800000–0483899999 (100,000 numbers) was allocated on 8 January 2020 to TELSTRA LIMITED and has stayed with the original allocatee.
- 0483900000–0483999999 (100,000 numbers) was allocated on 8 April 2022 to OPTUS MOBILE PTY LIMITED and has stayed with the original allocatee.
The 0483 holders nationally
Set against the whole Australian mobile plan, TELSTRA LIMITED holds about 91% of all allocated mobile numbers across 52 prefixes; OPTUS MOBILE PTY LIMITED about 34% across 24 prefixes. Inside 0483 the balance is different: TELSTRA LIMITED has 87.5% of the window, the rest is split between the other 1.
| Holder | Numbers in 0483 | Share of 0483 | Share of all 04 numbers | Prefixes held |
|---|---|---|---|---|
| TELSTRA LIMITED | 700,000 | 87.5% | 91% | 52 |
| OPTUS MOBILE PTY LIMITED | 100,000 | 12.5% | 34% | 24 |
The other prefixes in the 0480–0489 decade
Held by Telstra and Optus Mobile: 0480, 0481, 0482, 0484, 0485, 0486, 0487, 0488, 0489. The decade's oldest allocation is in 0488 (12 December 2006, Telstra), its youngest in 0486 (7 April 2020, Telstra). 5 prefixes in the decade are split between several holders: 0480, 0482, 0485, 0488, 0489.
What does a call from a 0483 number mean?
A 0483 number between 0483 400 and 0483 599 does not exist in the plan yet and is a spoofing tell. The rest are Telstra mobiles except 0483 9xx, which is Optus.
What people check and report about 0483 numbers
From searches typed into this site's lookup form since 3 September 2026, and the verdicts and moderated reports visitors left. A check usually follows a missed call.
Verdicts and reports on 0483 numbers: 2 verdicts, 0 reports
1 scam, 1 nuisance. Too few to show shares yet.
Latest comments
Most-reported and most-checked 0483 numbers
| Number | Verdicts | Reports | People checking |
|---|---|---|---|
| 0483 913 766 | 1 nuisance | — | 3 |
Had a call from a 0483 number?
No clear pattern in reports on these numbers yet. If a call worried you:
- Call back on a number you trust
If a caller says they're your bank, the ATO, Services Australia, a courier or your telco, hang up and ring the organisation on the number from its website or your statement, never the number that called you. Caller ID can be faked.
- Report the call to Scamwatch
The National Anti-Scam Centre uses Scamwatch reports to warn others and to get scam numbers blocked. Note the number, the time and what the caller claimed to be. If anyone is in danger, call 000.
- Register on the Do Not Call Register
Registering landlines and mobiles is free and stops most telemarketing calls within 30 days. Charities, political parties, surveys and scammers aren't covered.
- Forward spam texts to 0429 999 888
The ACMA collects unsolicited commercial texts forwarded to 0429 999 888 (standard message charges apply). Don't edit the message first. Scam texts that impersonate a bank, toll road or delivery company go to Scamwatch instead.
Nationally, Scamwatch recorded $72.5 million lost to scams that started with a phone call in 2025 (down from $107.2 million), with a median loss of $3,800 per report that lost money, and phone-call scam reports are 73.7% below their 2021 level. Telcos blocked 109.3 million scam calls and 45.2 million scam texts in January to March 2026. Sources: Targeting scams 2025 (National Anti-Scam Centre); ACMA quarterly report, Jan–Mar 2026.
0483 numbers: questions and answers
Which network does a 0483 number belong to?
0483 is split between 2 holders: Telstra (87.5%), Optus Mobile (12.5%). Mobile numbers can be moved to another network, so the caller may now be with a different provider.
When was 0483 first allocated?
The earliest 0483 range in the register is dated 11 June 2019; the most recent 15 September 2025. The window is covered by 4 register ranges.
How big is Telstra's share of Australian mobile numbers?
Across the whole 04 range, Telstra holds about 91% of allocated mobile numbers, spread over 52 of the 04xx prefixes.
Are calls from 0483 numbers scams?
Visitors have left 2 verdicts on 0483 numbers (1 scam, 1 nuisance, 0 safe) and 0 moderated reports, across 24 numbers people looked up. Most 0483 numbers belong to ordinary subscribers.
How do I report a scam call or text from a 0483 number?
Report scam calls and texts to Scamwatch. Forward unsolicited commercial texts to the ACMA on 0429 999 888, and block the number from your phone's recent calls or messages. If you lost money, call your bank first, then report it through ReportCyber.
Check a 0483 number
Range data is not personal data and the number on your screen can be spoofed. Scam calls: Scamwatch. Guides: Who called me from this number?, Which carrier owns which mobile prefix?
“Convincingly real AI Aussie female voice for a cost of living survey”
nuisance · 0483 913 766 · 11 Sept 2026