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Yap Inc. is a Charlotte, NC-based company in the Telecommunications sector.
Celluphone is a Commerce, CA-based company in the Telecommunications sector.
MetroPCS is a brand of prepaid wireless service in the United States, owned by T-Mobile US. MetroPCS offers nationwide Talk, Text and Data using T-Mobile's GSM, HSPA+ and 4G LTE network. MetroPCS also currently operates on the fifth largest mobile telecommunications network in the United States with 9.5 million subscribers as of January 2012, using CDMA technology in addition to its 4G network using LTE.
411 Systems Inc. is a Wellesley Hills, MA-based company in the Telecommunications sector.
CellGateUSA is a Irvine, CA-based company in the Telecommunications sector.