A good place to start is www.automotive.com/auto-insurance/77/arizona/index.html. This is a comprehensive list of car insurance providers for Arizona.
Allstate and Geico are among the top rated in Arizona.
You can go to dmv.com to search for car insurance in the Arizona region for free.
I think that is allstate. They operate in Arizona as well as other states.
A great primer to find out more information can be found at this website: http://www.cheapcarinsurance.net/cheap-car-insurance-in-arizona-az/. I strongly recommend looking through it as it will walk you through about particulars of insurance in Arizona, and where you can find cheap insurance. If you're looking for more general information, go to this website: http://www.thegeneral.com/car-insurance/arizona/.
Car insurance for residents of the state of Arizona can be found at http://www.dmv.org/az-arizona/car-insurance.php. Another good option is garagefly.com.
There are many companies that offer discounted car insurance in Arizona. In addition to a local insurance office, one might also try an online company such as eSurance.
You can compare prices of car insurance for Arizona through cheapcarinsurance.net. You can enter your basic information and they will find rates for various comapanies for you. This is a great way to get the best possible rate.
Progressive is a good company to get car insurance from.
As with any Insurance Company, as long as you registered the car with your car insurance company, then you are covered either same day or next billing cycle. Usually same day.
Progressive is renowed for their customer service.
look to see if there is a insurance card in the car, if not call the insurance company