IoT Data Plans: Credit approval or Prepayment required, taxes not included. On-network usage billed by “bytes”, there is no rounding. Off-network usage billed by “kilobytes”, every session will be rounded up to the next Kilobyte. SMS & Voice not included in IoT Data Plans. Domestic IoT Plans: Data allowance includes United States and Domestic data roaming. SMS & Voice not included in Domestic IoT Plans. North American IoT Plans: Data allowance includes United States, Canada, and Mexico. International IoT Plans: Data allowance includes International data roaming in over 210 countries. Submit a contact form for additional plan details and information.