Tuesday, 11 September 2001 : "United"

...extend our deepest sympathies and condolences to the individuals, employees and families who had friends or loved ones onboard United Flight 93 or United Flight 175. We are dispatching a team of United employees to assist the families involved and have established a toll-free number that families and friends can call for assistance and information...

The toll-free phone number for families in the US to call is 1-800-932-8555.

All United flights worldwide are suspended until further notice.