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Is 13 23 45 really StarTrack?

Type the number that rang, texted or appeared in a message. We check it against the official numbers we keep for Australian organisations — nothing stored, no sign-up.

Yes — 13 23 45 is a genuine StarTrack number.

Even so, don't ring it back from a message or a missed call. Type it in yourself, or find it on startrack.com.au. Scammers can display a real number on your screen — the number you look up is the only one you can trust.

Worth knowing: StarTrack never charges a redelivery fee through a link in a text.

Why the number on your screen can't be trusted

Caller ID is a label the caller sends along with the call, and scammers can set it to anything — including the real number of your bank or the ATO. That's why a matching number is only half an answer. The other half is a habit: never ring back the number you were given; look the organisation up yourself and ring that. This checker gives you the first half. The habit does the rest.

We can currently vouch for official numbers of 41 organisations: Australia Post, myGov, ATO, Medicare, CommBank, NAB, ANZ, ING, Bendigo Bank, Suncorp, Macquarie, ubank, Bankwest, St.George, Bank of Queensland, American Express, Afterpay, Optus, Vodafone, AGL, Origin Energy, Medibank, Bupa, AustralianSuper, Rest Super, Hostplus, Aware Super, Apple, Centrelink, StarTrack, DHL, E-Toll, Westpac, HSBC, Telstra, Linkt (tolls), Qantas, Coles, Woolworths, NBN Co, Service NSW. Our list is reviewed against each organisation's own website. A number not on the list isn't proof of anything — and a number on it can still be faked on a caller ID. Guidance, not a guarantee.

Common questions

The number matches. Does that mean the call was really them?

No. Caller ID can be faked, so a scam call can display a genuine number. A match tells you the number itself is real — it can't tell you who was on the line. Hang up, and ring the number yourself.

The number isn't on your list. Is it a scam?

Not necessarily. We can only vouch for the official numbers we keep; a number we don't recognise might be a real branch, a real person, or a scam. The safe move is the same in every case: find the organisation's number yourself, on their own website or the back of your card, and use that.

Where do your numbers come from?

From each organisation's own official website, checked by a person. We currently list official numbers for 41 Australian organisations, and the list is reviewed regularly. Nothing you type here is stored.

What should I do if I already rang back or gave details?

If you shared card or bank details, ring your bank on the number on your card. If you shared a password or a code, change it now from the organisation's own app or site. Then report it to Scamwatch, and consider a free call to IDCARE on 1800 595 160.

Other free checks: Which bank is this BSB? · Check a whole message