Because of T-Mobile and Verizon, the iPhone 11 supports an LTE band record

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The iPhone 11, the Pro, and the 11 Pro Max are again landing with three different model numbers depending on the carrier band support. There is a dedicated version for North America, a separate one with dual-SIM slots for China, and an international model for, well, globally. 
After all, the North American A2161 version has to support the exclusive FirstNet band for government employees and emergencey services, AT&T’s band 14, as well as T-Mobile’s vaunted band 71, the long-range 600MHz. 
Add to these Verizon’s new CBRS bands …

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