The company provides service on each of the major islands of Hawaiʻi, as well as on the mainland United States through roaming agreements with other carriers.

[3] mobi is an operator member of the GSMA,[4] the Competitive Carriers Association (the CCA), the CTIA, and the Pacific Telecommunications Council (PTC).

[8] In late 2022, mobi became one of the first wireless carriers in the world to migrate its mobile core to the public cloud, through a partnership with AWS and startup WG2 (since acquired by Cisco).

[10] mobi acquired wireless spectrum in the PCS band in 2004[11] and launched service[12] covering Hawaiʻi in 2005.

To support customers digitally and outside of Hawaiʻi, mobi was the first wireless carrier in the United States to support mobile recurring payments and eSIM activation through its apps for iPhone with Apple Pay and Google Pay (payment method) for Android.