transferring out after current contract expires
My current family plan has 4 numbers under the contract with different expiration dates. line 1 (primary line) ends Oct 7, 2013; line 2 ends Oct 11, 2013; line 3 ends Oct 12, 2013; line 4 ends Oct 13, 2013.
Upon the expiration of the contract, we all want to transfer to another carrier with current wireless numbers (individually). I have a couple of questions,
1, should I cancel the accout before transferring out? Does "transferring all numbers out" means the AT&T account was automatically cancelled?
2, Will the transfer be initiated by the new carrier or AT&T?
3, Can the primary line transfer out before other lines do?
4, My monthly bill statement ends on 6th (post paid, like the payment for billing cycle July 7-Aug 6 is due on Sep 1st) . If everyone transfers out on the expiration dates (7th, 11th, 12th, 13th), do I pay an additional full month charge, or just prorated charges?
Thanks and I really appreciate any assistance.