This is about verizon
Verizon's 3G network employs CDMA technology in both the Cellular (850 MHz) and PCS (1900 MHz) bands, and EVDO Revison A 3G data technology in most areas. The company has deployed LTE technology in the upper 700 MHz (750) band for its 4G network, with plans to add LTE in the AWS (1700 MHz) band, and to add native voice capability to its LTE network. Verizon Wireless was formed by the merger of Bell Atlantic Mobile, Vodafone/Airtouch Cellular, GTE Wireless and PrimeCo. Verizon also purchased and absorbed Alltel in 2009.

This is about USCC
U.S. Cellular is a large multi-regional carrier offering service in a number of states. The company uses CDMA 3G technology and LTE 4G technology. Most CDMA coverage is cellular-band (850 MHz), with some PCS (1900 MHz) areas. LTE 4G service is provided in the 700 MHz and 1700 MHz (AWS) bands, expanding into the 850 and 1900 MHz bands in the future.

Sounds very similar to me are you sure you got your facts correct on that? I used to work for USCC and they said phones would not work that always would considering the Iphone 5 would work with the CDMA and most of the 4g...