sRGB and Adobe RGB 1998.
With our lab’s digital printing software, your file’s embedded profile is used and converted to the profile of the output device at the time of printing. If there is no profile embedded in your file, it will be treated as sRGB, which is the default for many earlier cameras and scanners.
Which ever colour profile you use, use it ALL the way through your workflow. From the profile your camera embeds when shooting JPEG or the profile embedded when converting from RAW to JPEG, to the default colour space of your editing software and in any of your designs or template files. This way you will save unnecessary conversion and will not risk the wrong profile being ‘assigned’.