This is usually the quickest way. Open the "Settings" app on your iPhone. Tap on "General." Then, tap on "About." Scroll down the page a bit. Look for "ICCID" or "SIM Card Number." It will be listed right there. This method works for most iPhones. It's very reliable. This section provides a clear, step-by-step process. It helps you locate the number quickly. If you can't find it th... aolists.com