In one particular embodiment, the disclosure is directed to a method of
activating a prepaid telephony account. The method includes receiving a
call from a caller at a prepaid service destination address identified by
a prepaid calling card; receiving a prepaid card number of the caller;
receiving a destination number; receiving an origination address of the
caller; providing a message to the caller including an offer to associate
a prepaid account corresponding to the prepaid calling card with the
origination address of the caller; receiving a response to the message
from the caller; and associating a long distance service code with the
origination address of the caller based on the response to the message.