They do not use carrier aggregation between band 25/26 and 41. There is not enough spectrum to run band 26 on more than 5mhz in most markets. This means it is

They do not use carrier aggregation between band 25/26 and 41. There is not enough spectrum to run band 26 on more than 5mhz in most markets. This means it is slow and congests easily. The rest is used to support CDMA2k clients. As the parent post said, they don't have enough spectrum to run a proper dual network. The stopgap solution at this time is to get a Magicbox[1] from sprint that will grab band 41 signals from outside and relay it as a new tower on band 25 or 26. Then the phone will just fall back onto 1X for calls. [1]https://business.sprint.com/magic-box/ https://business.sprint.com/magic-box/