To Reach Aircraft In Flight (Uplink) Aircraft is flying in United States and needs to be reached by a customer on the ground in the United States. The ground based customer dials the "888/877" number assigned to the aircraft and waits for connection. If the ground customer should hang up and dial (800) AIRFONE follow the instructions given by the auto attendant (entering the 10 digit "888/877" or previously assigned number). The aircraft is flying in Mexico and needs to be reached by a customer on the ground in Mexico. The ground based customer dials: 630-572-6424 (connects the customer to (800) AIRFONE). The ground customer enters the number required (even if the aircraft has been assigned an "888/877" number), hangs up and waits for a return call. Aircraft is flying in Mexico and needs to be reached by customer on the ground in the United States. The ground based customer dials (800) AIRFONE. The ground customer enters the number required (even if the aircraft has been assigned an "888" number), hangs up and waits for a return call. Aircraft is flying in United States and needs to be reached by a customer on ground in Mexico. The ground based customer dials 630-572-6424 and leaves the appropriate information. If the ground based customer knows for sure the aircraft is in the United States, they can call 630-572-0051 and enter the phone number per the instructions of the auto attendant and wait for an immediate connection. The "fall back" is always the 630-572-6424 number.