AlarmSIM LLC is a North Carolina based, family owned business. The founders of AlarmSIM LLC set out to accomplish one thing, and one thing only. They wanted to make home security more of a reachable goal to anyone; without having to spend a ton of money or be locked into a greedy contract. They feel everyone should be able to afford the feeling of security in their home at a price that most people could afford, for less than a penny a day. In 2012, Co-Founder, Ricky Guthrie, Jr. began the long and hard journey of creating the perfect SIM card, the perfect plan and the perfect solution for GSM home security system owners. Today, the company is growing faster than ever and continues to provide excellent service at an affordable price to anyone searching for that feeling of being secure. AlarmSIM LLC brand SIM cards are available on the AT&T and T-Mobile Networks in all of the United States and Puerto Rico.