Most of our US customers use Truphone prepaid SIM
because they don't charge monthly fee. You can buy them online with free shipping within US (note, when they ask to select a state, they mean the state for the number of your future SIM card, not for the shipping address). You only pay $15 for the card (for the plastic, one time) and $15 for the airtime which does not expire. When iSocket sends alerts to you, this is considered an outgoing text. Each message costs 9 cents from that pre-paid airtime. You can later top up the credit (airtime) on the SIM card online via your Truphone account. Activation is also very simple. We usually recommend Truphone SIM to our customers in USA, so far we believe it is the best available option for the US that our customers use every day.
If you don't like Truphone SIM for some reasons or if they have changed their plans to the moment when you read it, then another options are: H2O
, Black Wireless
, Airvoice Wireless
. These are all Pay-As-You-Go SIM-cards with a minimum plan of about $3 monthly (because you pay $9 or $10 for 90 days). The good difference from Truphone is that there is no initial cost for the SIM card and sometimes cost of each message can be lower (e.g. 5 cents for H2O). Similar Prepaid solution T-Mobile 3-in-1 SIM Starter Kit
- available from T-Mobile or AT&T PREPAID SIM Card Kit
from AT&T. AT&T will ask you about IMEI number of the device during buying process. You can find it on the back label of the device - 15 digits below a barcode. We can tell you that number already after processing your order. If you buy it in a store, ask agent to help you with activation: they assign IMEI number of the unit to the number of your new SIM Cards. You will need a micro SIM card for iSocket 3G.