Also, if you just want to use the autonumbering capability provided by Access,but want the autonumber to start at 1111 instead of at 1, do the following:
1. add dummy records to the table until autonumber reaches 1110
2. add record that should have ID 1111
3. delete all dummy records
Note that an autonumber field does not guarantee that the numbering will be contiguous. Autonumber fields will skip numbers that were assigned to records that were added and then subsequently deleted. Read the information in this link
to understand what autonumbers are and what they are not.