I received the same call and it definitely looks like a scam.
Optus Impersonation Scam Alert! - +61 2 7252 0426 ((02) 7252 0426)
Summary — +61272520426
Expert Opinion
Be wary of unsolicited calls claiming to be from your telecom provider—scammers often spoof legitimate numbers to build trust. In these cases, the caller impersonates Optus, urging you to share SMS codes or discussing fake upgrades, which is a classic ploy to steal personal info or access accounts. Hang up immediately if something feels off; never provide codes or details over the phone. Instead, contact Optus directly using their official app or website to verify any issues. Enable call blocking on your device and report suspicious numbers to authorities like the ACCC in Australia to help curb these frauds. Stay vigilant to protect your data.
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Rate this number — +61272520426
Recent Reports for (02) 7252 0426
A fraudulent call claimed to be from Optus and requested that I read a code from an SMS they supposedly generated.
Impersonating Optus, the caller tried to push an upgrade offer.
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Same caller name: Scam
Same category: Unknown