We have an old iphone 4 running IOS 6 that I unlocked with ATT that we use for BVI voice and text (no data) with LIME prepaid. I bought the sim card from mrsimcard.com. We use about $6 per week and just topup as needed.

Cheers, RickG


S/V Echoes, 2003 Beneteau 423
Grenada