The telephone country code for Australia is +61. To dial it from a landline phone, substitute your own international dialing prefix for the plus symbol. Note that you must also drop the leading 0 from the Australian telephone number. For example, Sydney's area code 02 becomes +61 2.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Dial Australia's international access code, 0011, followed by the country code for the UK, 44. Then dial the UK domestic number, leaving out the leading zero.
For example:
Dial the UK Country Code (44).
Dial the UK Area Code (WITHOUT the initial zero)
Dial the UK Local Number.
Dial the International Access Code (00) from the UK.
Dial the Country Code (61) for Australia.
Dial the Mobile Number.
The dialling code from UK to Australia is 00 61.
Australia uses country code +61, dialled as 0061 from the UK.
If you are calling from a UK mobile to Australia, dial 00 (international prefix from the UK) 61 (country code for Australia) and then the Australian number, dropping the leading 0 To call from Australia to a UK mobile, dial 0011 (international prefix from Australia) 44 (country code for Australia) and then the UK mobile number, dropping the leading 0
You do not need a special code. Both area are part of the UK and share the same phone number system.
0061 2 then local area code
Country code +61, area code 8, which is dialed from the UK as 00 61 8
Dial the International Access Code (00 from the UK). Dial the Country Code (353 for Ireland). Dial the Irish Area Code and Local Number. OMIT the initial zero from the area code.
Replace the leading 0 of the Australian number with 00 61, or with +61 from a mobile.
The International dialing code for Melbourne Australia from the UK is... 00613 then the persons number.
Country code 0061 (for Australia) - followed by 7 for Brisbane, then the subscribers number.
Dial 011 44, then the full UK phone number minus its leading zero. For example, UK number 01632 456789 (or +44 1632 456789) is dialled as 011 44 1632 456789.
There is no "secret code".