Which carriers will activate my Sierra Wireless AirCard 555?
Companies that operate CDMA networks and provide access to these networks are called service providers. You must have an account with a CDMA service provider to use the AirCard 555. The process of setting up an account is called activation. If you purchased the AirCard from a service provider, you may already have an account. (That is, your network card is pre-activated.) Otherwise, you can refer to the Sierra Wireless web site, www.sierrawireless.com, for a list of service providers.