its seems a bit complicated than i thought
you really know your stuff :)
my current device is SM-G9287
2G GSM
GSM850, GSM900, DCS1800, PCS1900
3G WCDMA
B1(2100), B2(1900), B5(850), B8(900)
3G TD-SCDMA
B34(2010), B39(1880)
4G FDD LTE
B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600)...