Does Alcatel One Touch Idol 3 show which LTE Band is used (e.g. 12)?

I'm a T-Mobile US customer, and I'm quite interested in getting a phone with Band 12 support, and one that'll actually let me have a better understanding of the network and whether I'm receiving the benefit of having the upgraded phone with the Band 12 support. As per https://sites.google.com/site/cellularbinder/compatible-phones and the specs of the phoe itself, Alcatel One Touch Idol 3 does appear to support LTE Band 12. However, does it have the ability to show which band is presently being used, like some other non-Google phones can? (I currently have a couple of Google Nexus phones, and am quite disappointed that there appears to be no way to see which exact bands of LTE or UMTS do they use.)