Default Unusable frequencies in Service Mode?

So I noticed that in the service menu (*#2263#) There's 3 frequencies that are present but when you select them it doesn't take affect.
The frequencies are 900MHz 3G and bands 20 and 3 4G LTE. Anyway these are usable somehow? It's odd they'd be in the Service Menu as an option but not work... also for some reason 2100MHz 3G is listed as "IMT2000"
Anway here's some screen shots of them.

Current Phone: T-Mobile Samsung Galaxy Note 3
Sony Ericsson w810i > Sony Ericsson w580i > Samsung Black Jack II > Apple iPhone 3G 8GB > T-Mobile G2 > Nokia N900 > T-Mobile G2 > AT&T Samsung Galaxy Note > AT&T Samsung Galaxy Note II > Pantech Burst > T-Mobile Samsung Galaxy Note 3