Learn how to find the serial number of an iPhone, iPad, iPod, HomePod, Mac, or other Apple product.
Apple registration numbers and Apple hardware product serial numbers use the numbers 0 (zero) and 1 (one) instead of the letters "O" or "I".
Barcode scans of Apple product boxes might display a leading letter "S" before the product's serial number; however, the leading letter "S" isn't a part of the serial number.