The retailers, which include CallPlus, Kordia, Orcon, Vodafone and Woosh, have signed letters of intent.
Crown Fibre Holdings expects some product offerings and prices could be announced in the coming weeks.
Telecom and TelstraClear are not on the list.
Telecommunications Users Association chief executive Paul Brislen says it will be good for retail prices to be made available so users can plan their telecommunications spending.