The disruption affected mostly visitors with AT&T, T-Mobile and Verizon service, cutting them off data networks across the continent for 24 hours or more. Mobile Applications, Wireless Communications, Telephones and Telecommunications, Travel and Vacations, Computer Network Outages, Cellular Telephones, AT&T Inc, T-Mobile US Inc, Verizon Communications Inc, Europe The disruption affected mostly visitors with AT&T, T-Mobile and Verizon service, cutting them off data networks across the continent for 24 hours or more. NYT > Business