I think this should be interesting. Thumb Cellular is the Cellular-B side CDMA carrier that covers my area. Verizon already has a voice and data roaming agreement with them since Verizon doesn't provide service here. It'll be weird to have Verizon supplying Thumb Cellular with equipment and the spectrum but yet the network is still going to register as "Extended Network" for Verizon phones coming into the Thumb area.