Area Code +1-240-(2510000...2519999) located in Highfield, 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 : 2510000 Subscriber Number To : 2519999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : CORE COMM - 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 : Highfield Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.7200 Longitude : -77.4800 ‹ previous : +1-240-(2500000...2509999) next › : +1-240-(2520000...2520999) Dialling Instructions For trunk calls: 0 240 2510000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2510000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2510000 ~ 2519999 (Count: 10,000) Example: +1-240-2510000 / 0111-240-2510000 (1240-2510000 / 1-240-2510000) +1-240-2510001 / 0111-240-2510001 (1240-2510001 / 1-240-2510001) +1-240-2510002 / 0111-240-2510002 (1240-2510002 / 1-240-2510002) +1-240-2510003 / 0111-240-2510003 (1240-2510003 / 1-240-2510003) +1-240-2510004 / 0111-240-2510004 (1240-2510004 / 1-240-2510004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2519995 / 0111-240-2519995 (1240-2519995 / 1-240-2519995) +1-240-2519996 / 0111-240-2519996 (1240-2519996 / 1-240-2519996) +1-240-2519997 / 0111-240-2519997 (1240-2519997 / 1-240-2519997) +1-240-2519998 / 0111-240-2519998 (1240-2519998 / 1-240-2519998) +1-240-2519999 / 0111-240-2519999 (1240-2519999 / 1-240-2519999)