Find any 551- phone number in New Jersey

The 551 area code is a designated numbering plan area (NPA) for the US state of New Jersey. It was created in June 2001 when the 201 area code was split in order to fulfill the growing demand for phone numbers. It currently encompasses parts of the northern and central regions of the Garden State, covering cities such as Paterson, Rutherford, Englewood, Hackensack, and Paramus.

The 551 area code is part of North American Numbering Plan (NANP), an integrated numbering plan that allows telephone users around the North American continent to share area codes and easily dial phone numbers. This plan is managed by the North American Numbering Plan Administration (NANPA). Each area code is split into smaller regions, known as rate centers, and each rate center is then assigned a block of ten-thousand numbers when needed. This makes it easier for phone companies to allocate specific phone numbers and provide phone services to their customers.