Telephone Area Codes & Exchanges in Rockville, Maryland?

Answer Maryland's fifth largest city, Rockville, MD is located 12 miles northwest of Washington DC. With a population of more than 53,000 people as of 2005, Rockville has two area codes: 240 and 301.

Top Q&A For: Telephone Area Codes & Exchanges in Rockville, ...

How to Check Telephone Area Codes?

There may be many reasons for checking telephone area codes. Perhaps you have a seven-digit phone number but no area code or maybe you have an area code for which you would like to discover locatio... Read More »

When did telephone area codes start?

The American Telephone and Telegraph Company (AT&T) began working on the system of area codes in the 1940s, officially launching them nationwide Nov. 10, 1951, adding 90 area codes that year. In 20... Read More »

How to Find Telephone Area Codes?

Because telephone area codes are designated according to location, in order to find an unknown area code you need to know the name of the location where the person you want to call activated their ... Read More »

Whats the history of the Randolph Road crossing in Rockville, Maryland?

Read this site !!…