About this number
(520) 721-0010 is a landline based telephone number operated by Qwest Corporation and is located in zip code 85710 in the city of Tucson, Arizona, which is in Pima County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 520, a Network Numbering Exchange (NXX - also known as a prefix) of 721 and a subscriber number of 0010. It has an Operating Company Number (OCN) of 9636. A Common Language Location Identifier (CLLI) of TCSNAZRNDS0. As well as a Local access and transport area (LATA) of 668. Zip code 85710 has a population of 54,439 as of the 2010 census.