Area Code +1-240-(8010000...8010999) located in Gaithersburg, Maryland (MD), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 240 Subscriber Number From : 8010000 Subscriber Number To : 8010999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : VERIZON WIRELESS-MD 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 : MD Region Name : Maryland City : Gaithersburg Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.1400 Longitude : -77.2000 ‹ previous : +1-240-(8009000...8009999) next › : +1-240-(8021000...8021999) Dialling Instructions For trunk calls: 0 240 8010000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 8010000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8010000 ~ 8010999 (Count: 1,000) Example: +1-240-8010000 / 0111-240-8010000 (1240-8010000 / 1-240-8010000) +1-240-8010001 / 0111-240-8010001 (1240-8010001 / 1-240-8010001) +1-240-8010002 / 0111-240-8010002 (1240-8010002 / 1-240-8010002) +1-240-8010003 / 0111-240-8010003 (1240-8010003 / 1-240-8010003) +1-240-8010004 / 0111-240-8010004 (1240-8010004 / 1-240-8010004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-8010995 / 0111-240-8010995 (1240-8010995 / 1-240-8010995) +1-240-8010996 / 0111-240-8010996 (1240-8010996 / 1-240-8010996) +1-240-8010997 / 0111-240-8010997 (1240-8010997 / 1-240-8010997) +1-240-8010998 / 0111-240-8010998 (1240-8010998 / 1-240-8010998) +1-240-8010999 / 0111-240-8010999 (1240-8010999 / 1-240-8010999)