About Access Phone Numbers
AOL access phone numbers are the telephone numbers your modem dials to connect to the AOL service. AOL recommends selecting at least two access phone numbers for each dial-up location in case a number is experiencing a high volume of traffic or is not in service.
Note: AOL strongly recommends that you contact your local phone company to confirm that any access phone number(s) you have chosen for dial-up access to AOL will not cause toll or long-distance charges to appear on your phone bill. Simply because an access phone number has the same area code or city as your dial-up location, it does not necessarily mean that it is in your local calling area. The access phone number(s) that you have selected may not correspond to your local phone company's billing designations and need to be carefully selected. If you do not contact your local phone company, you may unnecessarily incur phone charges when dialing an AOL access phone number. Only your local phone company can provide this information.
For more information, see:
Selecting Access Phone Numbers
Adding Access Phone Numbers to a Location