T-Mobile 1900MHZ HSPA(+)

     For a while now T-Mobile has running their new 1900 MHZ network to target AT&T users because all new devices have the 1900 MHZ PCS band so T-Mobile can give HSPA service to devices without the 1700/2100 MHZ bands.

   T-Mobile has been covering Washington DC with 1900 MHZ since the day it was launched and yes did I get excellent speeds with the compromise of coverage, meaning that due to lack of coverage 1900 MHZ can reach my speeds were lowered to EDGE in buildings and received numerous dropped calls. But, let's look at the history behind 1900 MHZ, the band was originally used by AT&T (still is today) to provide GSM/UMTS to their customers so this band is the reason why AT&T earned it's reputation back then as having the spottiest coverage in the US. So to keep it's customers AT&T did a 850 MHZ refarm, similar to what T-Mobile is doing but T-Mobile is doing this at a slower rate due to not having the money to deploy spectrum in every market. But if you would still like to try out T-Mobile's 1900 MHZ network you can do so for less than 40 dollars and use this as an on demand service or use it for primary uses.
 
  If you would still like to test out T-Mobile's new 1900 MHZ network I'd recommend using a device like the Nexus 4 or a device with 1700/2100 MHZ bands as T-Mobile non 1900 MHZ network is AWS so you need both 1700/2100 MHZ bands to get T-Mobile HSPA when not covered by 1900 MHZ. But if you live in an LTE market, I'm pretty sure the super fast LTE speeds will compensate for the lack of 1900 MHZ coverage.