LAS VEGAS -- For many the switch to 10-digit dialing this weekend, won't be such a big deal.
People who already have a 702 area code, will not lose their number even though the new 725 area code will start in June.
Experts say you do have to start thinking about some of the devices you use to see if they will be affected by the change, especially a home security system.
"You should check your alarm on a regular basis," CEO of National Security Alarms Gary Bender said.
Bender says that advice is especially critical this coming Saturday, when 10-digit dialing goes into effect in southern Nevada.
"If the panel is not programmed properly, it won't be able to dial out," Bender said.
According to Bender, this scenario could happen to any home and business owner whose security alarm system is hooked up to a land line.
He says each system is linked to a phone number which dials out to alert monitoring centers when there is a potential emergency.
So, if you have a land line and the phone number is not programmed in with the area code, starting this Saturday, your alarm system won't work.
"I actually have never thought of it. I never have," homeowner Carla Cordova said.
Cordova just got a home security system for the first time when she and her husband Phil moved into their new home in Henderson last year.
She has the system linked to her land line. When she went through her paperwork, she was relieved to see that both her phone number and her area code have already been programmed in.
"To tell you the truth, since I have one I do have a better piece of mind," Cordova said.
A piece of mind that comes with a security system meant to protect your home and family, but only if it works the way it is meant to.