Question: The HTC U11 major carrier is Sprint, but it can be unlocked for this Texas company that is world's largest telecommunications provider? 

<P0-S0> The HTC Touch Diamond, also known as the HTC P3700 or its codename the HTC Diamond, is a Windows Mobile 6.1-powered Pocket PC designed and manufactured by HTC. <P0-S1>  It is the first device to feature TouchFLO 3D - a new version of the TouchFLO interface, unique to the Touch family. <P0-S2>  The HTC Touch Diamond was first available in Hong Kong in late May 2008. <P0-S3>  It was available across all major European carriers in June 2008, and later in the year in other parts of the world. <P0-S4>  The American Touch Diamond was launched on September 14, 2008 on the Sprint network, and April 10, 2009 on the Verizon Wireless network. <P0-S5>  The European release date was slightly delayed by a last-minute ROM update. <P0-S6>  The carrier bound names for this phone include T-Mobile MDA Compact IV, O2 XDA Diamond and O2 XDA Ignito. <P0-S7>  It is the official successor of the HTC Touch. <P0-S8>  The successor to the Touch Diamond - the HTC Touch Diamond2 - was announced in February 2009 for Q2 2009 release outside the US and Q4 release estimated for North America. <SEP> <P1-S0> The HTC U11 is an Android smartphone manufactured and sold by HTC as part of the HTC U series. <P1-S1>  It was announced on 16 May 2017 and succeeds the HTC 10 smartphone. <P1-S2>  In the US, the HTC U11's major carrier is Sprint, however it is also compatible with unlocked carriers, such as AT&T, T-Mobile, and Verizon networks. <SEP> <P2-S0> AT&T Inc. is an American multinational telecommunications conglomerate, headquartered at Whitacre Tower in downtown Dallas, Texas. <P2-S1>  AT&T is the world's largest telecommunications company. <P2-S2>  AT&T is the second largest provider of mobile telephone services and the largest provider of fixed telephone services in the United States, and also provides broadband subscription television services through DirecTV; combined with AT&T's legacy U-verse service, this also makes AT&T the largest pay television operator. <P2-S3>  AT&T is the second-largest company in Texas, behind ExxonMobil. <P2-S4>  s of February 2017 , AT&T is the 12th largest company in the world (non-oil and overall) as measured by a composite of revenues, profits, assets and market valuation. <P2-S5>  AT&T is the largest telecommunications company in the world by revenue. <P2-S6>  s of 2017 , it is also the 18th-largest mobile telecom operator in the world, with 134 million mobile customers. <P2-S7>  AT&T was ranked at #4 on the 2017 rankings of the world's most valuable brands published by Brand Finance. <SEP> <P3-S0> A telecommunications lease is a lease that exists between a telecommunications provider or wireless company, and a landowner. <P3-S1>  Similar to other real estate leases, a telecommunications lease is put in place as an agreement to lease space on the landowner’s property for a telecommunications site or cellular tower for a specified length of time. <P3-S2>  In exchange for the use of space, the telecommunications provider (also referenced as a tenant) agrees to pay the landowner (a monthly or annual) rent. <P3-S3>  Telecom leases can be excellent sources of ancillary income, in some cases providing the landowner with thousands of dollars per month.