GSCN 21-318 will introduce into the next edition of GS1 General Specifications a new GS1 Application Identifier (4309) for Ship-to / Deliver-to Geocode. The expected value is a 20-digit numeric string that encodes WGS84 latitude/longitude coordinates with a precision of around 1.1 centimetres. This is expected to be useful to support the delivery of parcels and logistic units that do not have a conventional postal address.
Open Location Code uses 11 alphanumeric characters to identify a rectangle on the surface of the Earth, with a spatial precision around 3.5 metresBy instead using 20 numeric digits it is possible to encode WGS84 latitude/longitude coordinates with a precision of around 1.1 centimetres
Further technical details about this idea are provided in the README page