How to Call Telstra From Abroad
9/9/2026
Quick answer: Call Telstra's International Roaming Helpdesk at +61 439 125 109, available 24/7 for roaming and technical issues. Telstra's everyday number, 13 22 00, is a domestic-only "13" number and won't connect from outside Australia.
This is a roaming helpdesk, not a general support line
Telstra's overseas-reachable number is specifically built for the Roaming Helpdesk, technical problems with your service while traveling, not general account or billing questions. If you're calling from your own Telstra SIM while roaming, Telstra charges a small flat fee (about 22.73 cents) rather than a full international rate. If you're calling from a browser or another network, it's simply a standard international call to a real Australian number, and it's still the only verified overseas-reachable Telstra number, so it's worth using even for account questions if you can't wait until you're back on Australian soil.
The verified number
| Line | Number | Availability |
|---|---|---|
| International Roaming Helpdesk | +61 439 125 109 | 24/7 |
Source: Telstra's support page on calling from overseas. Telstra's domestic general line, 13 22 00, and its multilingual line, 1800 241 600, are both toll-free formats that don't work from outside Australia.
What to have ready before you call
- Your Telstra account number or mobile number
- The address registered on your account
- Details of the specific issue: a roaming problem, a blocked service, or a billing question
Best time to call
The Roaming Helpdesk runs 24/7 for technical issues, though Telstra notes general chat and call support runs closer to 8am-7pm AEST Monday to Friday.
- UK: Australia is 9 to 11 hours ahead, depending on daylight saving, so call in your evening.
- US East Coast: Australia is 14 to 16 hours ahead.
- UAE/Gulf: Australia is 6 to 8 hours ahead.
- Singapore/Hong Kong: Australia is 2 to 3 hours ahead.
The cheaper way to actually make the call
If you're not on your own Telstra SIM, standard international rates apply for the whole call. With DialVia, you call the real Telstra number over Wi-Fi from your browser instead:
- Open DialVia and sign up (about 30 seconds)
- Select Australia as the destination
- Enter the number: 439 125 109
- Hit call
Frequently asked questions
What's Telstra's number for calling from abroad? +61 439 125 109, the International Roaming Helpdesk, available 24/7.
Is this number only for roaming problems? It's designed for that, but it's also the only verified Telstra number reachable from outside Australia, so it's a reasonable fallback for other urgent account questions too.
Is calling Telstra from abroad free? Only a small flat fee applies if you're calling from your own Telstra SIM while roaming. From a browser or another network, it's a standard international call.
Does 13 22 00 work from outside Australia? No, it's a domestic-only "13" number.
Need another Australian telecom provider's number? See the full guide to calling Australian telecom providers from abroad, covering Optus and TPG too.
👉 Try DialVia to call from your browser in 30 seconds. Didn't connect? You don't pay. Or return to the DialVia homepage to learn more.