Australian mobile phone number

\b04\d{2}-\d{3}-\d{3}

Matches a 10-digit number of the format 04NN-NNN-NNN delimited by hyphen.

1

(0|\+61 )4\d{2} \d{3} \d{3}

Matches a 10-digit number of the following format delimited by space:

1

(0|\+61)4\d{8}

Matches a 10-digit number of the following format without a delimiter:

1