Band Numbers present different frequency, here list of LTE Bands and NR Bands . Character after number is Bandwith Class mark. Full explanation in 3gpp.org
LTE CA Bandwidth Class
Max number of CC
3A or 3
We can't guarantee that the information on this page is 100% correct. The main source are the UE Capability Information -message, 0xB0CD and 0xB826. You can contribute by send your device UE Capability Information to us.