RoamTheWorldCellPhones.com

Cellphone GSM Frequencies: 900/1800

(This means you will need a GSM cellphone that will work on 900MHz or 1800Mhz to use it in Azerbaijan.)

Cellular carriers for Azerbaijan

Azercell Telecom BM (AZERCELL GSM)

Frequency: GSM 900
Website: www.azercell.com

Coverage Map (NONE)

Azerfon LLC (Nar Mobile)

Frequency: GSM 1800
Website: www.narmobile.az

Coverage Map

Bakcell Ltd (BAKCELL GSM 2000)

Frequency: GSM 900
Website: www.bakcell.com

Coverage Map (NONE)

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