A system and method are provided for automatic correction of numeric input, such as telephone numbers. The communications device configured to perform automatic correction can receive a numeric input string indicating a numerical address with which to initiate a communication, and compare the numeric input string to a database of known valid numerical addresses. Then, upon determining that the numeric input string has no match within the database of known valid numerical addresses, the communications device can identify a known valid numerical address that is within a threshold similarity to the numeric input string, and correct the numeric input string. The communications device can initiate communication using the corrected numeric input string. Also set forth herein are a system and method for automatic completion of partially entered numerical addresses.