Area Code +1-206-(5399000...5399999) located in Seattle, Washington (WA), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 206 Subscriber Number From : 5399000 Subscriber Number To : 5399999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : T-MOBILE USA INC. Click here to buy United States Area Code Database Other Information Language Code : en (English) Country Number : 840 (United States) Country Code : US (United States) Region Code : WA Region Name : Washington City : Seattle Timezone : America/Los_Angeles Coordinated Universal Time : -08:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 47.6100 Longitude : -122.3300 ‹ previous : +1-206-(5398000...5398999) next › : +1-206-(5551212...5551212) Dialling Instructions For trunk calls: 0 206 5399000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 206 5399000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5399000 ~ 5399999 (Count: 1,000) Example: +1-206-5399000 / 0111-206-5399000 (1206-5399000 / 1-206-5399000) +1-206-5399001 / 0111-206-5399001 (1206-5399001 / 1-206-5399001) +1-206-5399002 / 0111-206-5399002 (1206-5399002 / 1-206-5399002) +1-206-5399003 / 0111-206-5399003 (1206-5399003 / 1-206-5399003) +1-206-5399004 / 0111-206-5399004 (1206-5399004 / 1-206-5399004) ...+1-206-xxxxxxx / 0111-206-xxxxxxx (1206-xxxxxxx / 1-206-xxxxxxx) ...+1-206-5399995 / 0111-206-5399995 (1206-5399995 / 1-206-5399995) +1-206-5399996 / 0111-206-5399996 (1206-5399996 / 1-206-5399996) +1-206-5399997 / 0111-206-5399997 (1206-5399997 / 1-206-5399997) +1-206-5399998 / 0111-206-5399998 (1206-5399998 / 1-206-5399998) +1-206-5399999 / 0111-206-5399999 (1206-5399999 / 1-206-5399999)