The GLS tracking number format is usually 9 digits. However, we found formats as follows could also be GLS.
10 digits
11 digits
12 digits
14 digits
20 digits
2 digits + B + 5 alphabetic characters or digits
2 digits + AE + 4 alphabetic characters or digits
GLS tracking number example:
506129509800
36656564664
31153010178
00BEHYMH
506130057468
90058308251
49501239390
506130057284
36652413878
GLS is a Dutch, British-owned logistics company based in Amsterdam. It was founded in late 1999 and now it covers 41 European countries and 7 U.S. states.
You can also track GLS tracking number on trackingmore.com