University of
Connecticut
Area Code and 10-Digit Dialing Telephone Changes
2009-05-12
The North American Numbering Plan Administration (NANPA) announced that effective May 16, 2009 there will be an overlay for the 203 area code. An overlay is the addition of another area code (475) to the same geographic region as an existing area code. An overlay does not require customers to change their existing area code or phone number. More...
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