Cell phones can now be used to pay for parking at almost 12,000 meters in each of Montgomery County’s parking districts, the county announced on Tuesday. The recent conversion of 1,089 meters in North Bethesda adds the service to the county’s final parking district, following meters in Bethesda, Silver Spring, Wheaton and Montgomery Hills that have been converted to allow paying with a cell phone.

To pay with a cell phone, first-time users must register for the program by going to www.mc.goparknow.com or calling 301-830-7074. Drivers have to set up an account and designate a credit card that will be used for the parking fees.

Once drivers have registered and want to park, there are instructions on each meter. Drivers have to call 301-830-7074 or text 32075, follow the prompts, enter the meter number and choose the amount of time they plan to park. A confirmation voice message or text message will follow.

The county began adding Quick Response (QR) codes to meters over the summer. That code can be scanned using the ParkNOW! app, which is available from iTunes and the Android Market.