Area Code +1-240-(5581000...5581999) located in Kensington, 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 : 5581000 Subscriber Number To : 5581999 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 : CBEYOND COMMS - 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 : Kensington Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0200 Longitude : -77.0800 ‹ previous : +1-240-(5580000...5580999) next › : +1-240-(5582000...5582999) Dialling Instructions For trunk calls: 0 240 5581000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 5581000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5581000 ~ 5581999 (Count: 1,000) Example: +1-240-5581000 / 0111-240-5581000 (1240-5581000 / 1-240-5581000) +1-240-5581001 / 0111-240-5581001 (1240-5581001 / 1-240-5581001) +1-240-5581002 / 0111-240-5581002 (1240-5581002 / 1-240-5581002) +1-240-5581003 / 0111-240-5581003 (1240-5581003 / 1-240-5581003) +1-240-5581004 / 0111-240-5581004 (1240-5581004 / 1-240-5581004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-5581995 / 0111-240-5581995 (1240-5581995 / 1-240-5581995) +1-240-5581996 / 0111-240-5581996 (1240-5581996 / 1-240-5581996) +1-240-5581997 / 0111-240-5581997 (1240-5581997 / 1-240-5581997) +1-240-5581998 / 0111-240-5581998 (1240-5581998 / 1-240-5581998) +1-240-5581999 / 0111-240-5581999 (1240-5581999 / 1-240-5581999)