RoamTheWorldCellPhones.com

Cellphone GSM Frequencies: 900

(This means you will need a GSM cellphone that will work on 900Mhz to use it in Guyana.)

Cellular carriers for Guyana

Guyana Telephone & Telegraph Co. (Cellink Plus)

Frequency: GSM 900
Website: www.gtt.co.gy

Coverage Map (NONE)

U-Mobile (Cellular) Inc. (Digicel Guyana)

Frequency: GSM 900
Website: www.digicelguyana.com

Coverage Map (NONE)

If you've used either of these networks or roamed in Guyana, please post about your experience and the cost. Feel free to ask questions.