Area Code +1-240-(2052000...2052999) located in Rockville, 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 : 2052000 Subscriber Number To : 2052999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : NEW CINGULAR WRLS DC 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 : Rockville Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0900 Longitude : -77.1600 ‹ previous : +1-240-(2051000...2051999) next › : +1-240-(2053000...2053999) Dialling Instructions For trunk calls: 0 240 2052000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2052000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2052000 ~ 2052999 (Count: 1,000) Example: +1-240-2052000 / 0111-240-2052000 (1240-2052000 / 1-240-2052000) +1-240-2052001 / 0111-240-2052001 (1240-2052001 / 1-240-2052001) +1-240-2052002 / 0111-240-2052002 (1240-2052002 / 1-240-2052002) +1-240-2052003 / 0111-240-2052003 (1240-2052003 / 1-240-2052003) +1-240-2052004 / 0111-240-2052004 (1240-2052004 / 1-240-2052004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2052995 / 0111-240-2052995 (1240-2052995 / 1-240-2052995) +1-240-2052996 / 0111-240-2052996 (1240-2052996 / 1-240-2052996) +1-240-2052997 / 0111-240-2052997 (1240-2052997 / 1-240-2052997) +1-240-2052998 / 0111-240-2052998 (1240-2052998 / 1-240-2052998) +1-240-2052999 / 0111-240-2052999 (1240-2052999 / 1-240-2052999)