Sprint has been way behind AT&T, Verizon and T-Mobile in rolling out high-speed LTE services. There is currently some coverage in Queens, Manhattan and Staten Island, although there has been no official start date announced.
New York City is the most populated city in America, and implementing new cell service is difficult due to interference from tall buildings and finding locations for hardware. Not to mention all the people fighting for bandwidth on those towers. In the last six months, Sprint has added 12 new towers in the New York City area, and 906 data speed upgrades.
Sprint says it has 110 4G markets, and New York City will make 111. Sprint is also working on cell service in all 277 subway stations, beginning with 36 stations it hopes to have up and running in early 2014. AT&T and T-Mobile already offer cellular connections in select underground locations. Verizon and Sprint are signed up with Transit Wireless for the underground connectivity.
Sprint was the third US carrier to offer the iPhone, signing on with Apple in October 2011.