This post has nothing to do about taxes, but everything to do with phone numbers in Las Vegas. Beginning one week from today, the 702 area code (which covers Clark County, Nevada–primarily the Las Vegas metropolitan area) will be “overlayed” with the 725 area code. That means if you dial a phone number in Las Vegas you must dial ten digits (e.g. 702-555-1212 must all be dialed). Beginning in one month, new phone numbers will be assigned with the 725 area code.
The Nevada Public Utilities Commission has a fact sheet available on the new area code.