![]() ![]() Included with the location of each prefix are the phone companies / service providers that operates them. View all phone prefixes used in area code 301 or other area codes in Maryland. The North American Numbering Plan Administration (NANPA) is reponsible for further divisions or adjustments to current area codes. Area code 301 is assigned for use in Maryland since Jan 01, 1947. By adding a 3 digit prefix to a 7 digit local number, this allowed for hundreds of millons of new phone numbers to be issued. Listing and directory of all Schools, Colleges and Universities Address & phone numbers in area code 301, MD. On January 1, 1947, the first North American area codes were issued in regions where standard 7 digit dialing codes were scheduled to be exhaused the soonest. Its Numbering Plan Area covered the entire State of Maryland for 44 years. Based around major cities, some low population states such as Idaho and Montana have only one areas code, whereas other, such as California or New York, may have muliple area codes as they have a requirment for millions of local landline, cell phone, fax, and business phone numbers. Area Code 301 was one of the original area codes introduced in 1947 by the NANP. ![]() It can be helpful determining who is calling by looking are similar phone numbers. Below are some comments for nearby phone numbers. To faciltiate the millions of phone users, the United States of America is divided into regions known as Area Codes, corresponding to particular geographic telephone dialing areas. Latest Comments for 471-301 Phone Numbers There are no comments yet.
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