<P> Since May 3, 2014, area code 702 has been overlaid with area code 725 . Ten - digit dialing is required for all calls, with exceptions for landline - based callers calling long distance within the county, for which "1" must be dialed first . </P> <P> Under current projections, the Las Vegas area will not need another area code until late 2044 at the earliest . Despite Las Vegas' continued growth, 702 / 725 is nowhere near exhaustion . </P>

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