The 385 area code covers Utah's Wasatch Front, anchored by Salt Lake City, and shares the exact same five-county geography as the older 801 area code rather than covering a separate territory, meaning a 385 number and an 801 number can belong to neighbors on the same street. The counties are Salt Lake, Utah, Davis, Weber, and Morgan, with cities including Salt Lake City, West Valley City (Utah's second-largest city), Provo and Orem (the Utah County tech and university hub), West Jordan, South Jordan, and Sandy in the southern suburbs, Ogden and Layton in the northern Weber-Davis corridor, Lehi and American Fork in the 'Silicon Slopes' tech belt, and Bountiful, Murray, Taylorsville, and Spanish Fork. Utah operated under the single area code 801, established in 1947, until mid-2000s population growth and mobile-phone demand drained its number supply; area code 385 was assigned to the same numbering plan area and entered service on June 1, 2008, followed by a year-long permissive dialing period, after which 10-digit dialing became mandatory on June 1, 2009. The region sits in the Mountain Time Zone, observing MST (UTC-7) and MDT (UTC-6), one hour behind Central Time and two behind the East Coast. Because 385 is a legitimate Utah overlay code, scammers exploit neighbor spoofing to fake a local-looking caller ID from anywhere in the world; recommended protections include letting unknown calls go to voicemail, never sharing personal or financial details with unsolicited callers, verifying independently by calling official numbers, and blocking or reporting repeat offenders.