The KM prepaid mobile wireless service will work on the KM Community Network and in the TbayTel extended calling area. The airtime and LD per minute usage rates will be higher when a customer is on the TbayTel network. If you require service in other areas of Northern Ontario, Canada or North America you will have to purchase a service package from an existing GSM carrier. Rogers Wireless (http://rogers.ca) and TbayTel both offer GSM service in Canada and have roaming with other North American carriers.