Making a phone call from Ecuador to Grenada is a fairly simple process. To get started, you will need to find the Grenada country code. This code is 473. Once you have this code, you will need to dial it followed by the phone number you are trying to reach. So, if you wanted to call the Grenada Embassy in Washington D.C., you would dial: 473-202-4400. If you are trying to reach a local Grenadian phone number, you would just dial the number as you would from within Grenada.