About this number
(561) 503 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in zip code 33128 in the city of Miami, Florida, which is in Dade County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 561 and Network Numbering Exchange (NXX - also known as a prefix) of 503. It has an Operating Company Number (OCN) of 4802. A Common Language Location Identifier (CLLI) of MIATFLADDS2. As well as a Local access and transport area (LATA) of 32767. Zip code 33128 has a population of 7,562 as of the 2010 census.