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Area code 303 is the original area code assigned to the entire state when the first nationwide telephone numbering plan was created in 1947. Today it only serves the greater Denver Metropolitan Area. Area codes 720 and 983 are overlay codes for today's 303 numbering plan area (NPA). Area code 719 serves Colorado Springs and southeastern Colorado.
Interactive map of the numbering plan areas of the Commonwealth of Pennsylvania (blue). This is a list of telephone area codes of Pennsylvania. In 1947, the American Telephone and Telegraph Company divided Pennsylvania into four numbering plan areas (NPAs) and assigned distinct area codes for each.
Area code 303 was one of the original North American area codes of 1947, and originally served the entire state of Colorado. It remained the state's sole area code for 40 years. Colorado's explosive growth in the second half of the 20th century, particularly in the Denver/Boulder area, made it a certainty that Colorado would need another area code.
An area code overlay is a numbering plan area ... Pennsylvania area and a small portion of its Pennsylvania suburbs 272: 570: ... Denver metropolitan area, Colorado ...
Clickable map of Colorado area codes in blue (with bordering states). ...
CWD was first found in the United States in 1967 in Colorado and Wyoming. Fleegle said the agency isn’t sure how three random positive deer made it to southcentral Pennsylvania in 2012.
The largest telephone numbering plan in North American is the North American Numbering Plan (NANP), serving 25 regions or countries. Other countries maintain an autonomous numbering plan with distinct country codes within the international E.164 specifications by the International Telecommunication Union.
The Pennsylvania Game Commission urges hunters in Disease Management Areas to have their deer tested for Chronic Wasting Disease (CWD) and to consider participating in a new extended antlerless ...