<Tr> <Td> 007 1xx xxx </Td> <Td> 0147 1xx xxx </Td> <Td> March 1999 </Td> <Td> Satellite telephone numbers </Td> </Tr> <Tr> <Td> 008 xxx xxx </Td> <Td> 1800 xxx xxx </Td> <Td> </Td> <Td> Toll - free numbers </Td> </Tr> <Tr> <Td> 01z xxx xxx </Td> <Td> 041z xxx xxx 040z xxx xxx </Td> <Td> </Td> <Td> Mobile phone codes (covering (014), (016), (018) and (019)) <P> Some of these codes are still in use: (014) is used for satellite phones, (016) for pagers, and (018) for a limited number of analogue AMPS phones . </P> </Td> </Tr> <P> Some of these codes are still in use: (014) is used for satellite phones, (016) for pagers, and (018) for a limited number of analogue AMPS phones . </P>

When did sydney phone numbers change from 6 digits