551 Area Code

Area Code	551
State	New Jersey
Country	United State
Code Type	General Purpose Code
In Service	Yes
Timezone	Eastern Standard Time (EST)
Overlay Complex	201/551
Assignment Date	02-APR-01
In Service Date	29-DEC-01
Area Code	551

What is the 551 Area Code?

Area code 551 is located in New Jersey, within United State, serving the region's residents and businesses. The 551 area code was first assigned in 02-APR-01 and has been in service since 29-DEC-01.

The 551 area code is part of an overlay complex, which includes the area codes 201/551. These codes all serve the same geographic region.

Cities in Area Code 551

Area codes of New Jersey

Further Details on the 551 Area Code

Where is the 551 Area Code Located?

Area code 551 serves the entire state of New Jersey in United State, providing phone services to both residential and business users. It covers urban, suburban, and rural areas alike, ensuring reliable communication across the region.

What time zone is area code 551 in?

Area code 551 is located in the Eastern Standard Time (EST) time zone. This designation indicates the predominant time zone for calls made within this area code.

When was area code 551 assigned and put into service?

Area code 551 was officially assigned on 02-APR-01, signifying its designation for use in telecommunications, and it became operational on 29-DEC-01, allowing callers to begin using this area code for their dialing needs.

Is the 551 Area Code Still Active?

Yes, the 302 area code is still active and in service. It is the primary area code for all landline and mobile phones registered in Delaware. There are no overlay codes currently in place for the state.

What are the dialing requirements for making calls with area code 551?

For local calls within area code 551, the required dialing pattern is 10D. For toll calls, you'll need to dial 10D , where "D" indicates the number of digits to dial. When calling foreign NPAs from area code 551, local calls require 1+10D, and toll calls use 1+10D.

Data Sources: NANPA Area Code, U.S. Area Code Map