Area Code +1-240-(5528000...5528999) 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 : 5528000 Subscriber Number To : 5528999 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 : TW TELECOM OF 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-(5527000...5527999) next › : +1-240-(5529000...5529999) Dialling Instructions For trunk calls: 0 240 5528000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 5528000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5528000 ~ 5528999 (Count: 1,000) Example: +1-240-5528000 / 0111-240-5528000 (1240-5528000 / 1-240-5528000) +1-240-5528001 / 0111-240-5528001 (1240-5528001 / 1-240-5528001) +1-240-5528002 / 0111-240-5528002 (1240-5528002 / 1-240-5528002) +1-240-5528003 / 0111-240-5528003 (1240-5528003 / 1-240-5528003) +1-240-5528004 / 0111-240-5528004 (1240-5528004 / 1-240-5528004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-5528995 / 0111-240-5528995 (1240-5528995 / 1-240-5528995) +1-240-5528996 / 0111-240-5528996 (1240-5528996 / 1-240-5528996) +1-240-5528997 / 0111-240-5528997 (1240-5528997 / 1-240-5528997) +1-240-5528998 / 0111-240-5528998 (1240-5528998 / 1-240-5528998) +1-240-5528999 / 0111-240-5528999 (1240-5528999 / 1-240-5528999)
