"We're really excited to be extending our programme further to keep more of our older population safe," said Matt Hannant, programme lead at Northern Region Health Coordination Centre.
"The vaccines are free and an important part of keeping our community safe and protected from Covid-19."
Hannant advised people to make a booking as soon as an invitation was received, warning that some vaccination centres may be busy.
"We have a range of centres available across Auckland, so if your nearest centre is busy you can also check our other centres nearby for availability."
People in Group 1 and 2 were encouraged to call 0800 282 926 if they hadn't made a booking.
This included people aged over 65 in South Auckland and older Maori and Pacific communities, who were originally told to wait for an invitation to be vaccinated.
General practices and pharmacies administering vaccines would increase in number over the coming months.