13 numbers (13 xx xx)

What does calling a 13 number cost?

Charged like a local call from landlines regardless of where the business answers. Most mobile plans now include 13 calls in the plan allowance, but pre-paid and older plans can charge timed mobile rates — check your provider.

Source: Australian numbering register (thenumberingsystem.com.au, operated for the ACMA)

Risk assessment

The class itself is heavily regulated and held by large organisations, but that is exactly why scammers spoof 13 numbers as their caller ID to impersonate banks and government agencies. A legitimate organisation calling you will never object to you hanging up and calling back the 13 number printed on its website or your card.