Area Code +1-240-(2432000...2432999) 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 : 2432000 Subscriber Number To : 2432999 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 : ALLEGIANCE TELCOM 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-(2431000...2431999) next › : +1-240-(2433000...2433999) Dialling Instructions For trunk calls: 0 240 2432000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2432000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2432000 ~ 2432999 (Count: 1,000) Example: +1-240-2432000 / 0111-240-2432000 (1240-2432000 / 1-240-2432000) +1-240-2432001 / 0111-240-2432001 (1240-2432001 / 1-240-2432001) +1-240-2432002 / 0111-240-2432002 (1240-2432002 / 1-240-2432002) +1-240-2432003 / 0111-240-2432003 (1240-2432003 / 1-240-2432003) +1-240-2432004 / 0111-240-2432004 (1240-2432004 / 1-240-2432004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2432995 / 0111-240-2432995 (1240-2432995 / 1-240-2432995) +1-240-2432996 / 0111-240-2432996 (1240-2432996 / 1-240-2432996) +1-240-2432997 / 0111-240-2432997 (1240-2432997 / 1-240-2432997) +1-240-2432998 / 0111-240-2432998 (1240-2432998 / 1-240-2432998) +1-240-2432999 / 0111-240-2432999 (1240-2432999 / 1-240-2432999)