About this number
(573) 406 is a landline based telephone number operated by Southwestern Bell and is located in zip code 63401 in the city of Hannibal, Missouri, which is in Marion County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 573 and Network Numbering Exchange (NXX - also known as a prefix) of 406. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of HNBLMOACDSA. As well as a Local access and transport area (LATA) of 520. Zip code 63401 has a population of 22,067 as of the 2010 census.