At a press briefing this morning, Cricket revealed that it plans to enable LTE roaming later this year on bands 4 (1700) and 25 (1900).
Band 25 LTE is used exclusively by Sprint in the U.S. Band 4 (AWS) is used by many carriers, including T-Mobile, AT&T, and soon, Verizon.
The Samsung Galaxy S 4 will be Cricket’s first phone to support band 25 roaming.