AT&T uses both the 800 and 1900 MHz bands for voice services depending upon the area, but the majority of their customers communicate on the 800 MHz band. If you are looking to boost a wireless card or are tethering (using a phone as a modem), we would recommend a Dual Band system (amplifies both bands), as AT&T's EVDO network utilizes the 1900 MHz band. However, for most customers, an 800 MHz only kit will be sufficient. Use the Wireless Advisor local coverage search below to view what band AT&T uses in your area, and proceed to shop by band.

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