About this number
(972) 423 is a landline based telephone number operated by Gte-Sw DBA Verizon Sw Inc.-Tx and is located in zip code 75074 in the city of Plano, Texas, which is in Collin County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 972 and Network Numbering Exchange (NXX - also known as a prefix) of 423. It has an Operating Company Number (OCN) of 4344. A Common Language Location Identifier (CLLI) of PLANTXXADS0. As well as a Local access and transport area (LATA) of 552. Zip code 75074 has a population of 44,622 as of the 2010 census.