Area Code +1-301-(2505000...2505999) located in Gaithersburg, Maryland (MD), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 301 Subscriber Number From : 2505000 Subscriber Number To : 2505999 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 : 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 : +1-301-(2504000...2504999) next › : +1-301-(2506000...2506999) Dialling Instructions For trunk calls: 0 301 2505000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2505000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2505000 ~ 2505999 (Count: 1,000) Example: +1-301-2505000 / 0111-301-2505000 (1301-2505000 / 1-301-2505000) +1-301-2505001 / 0111-301-2505001 (1301-2505001 / 1-301-2505001) +1-301-2505002 / 0111-301-2505002 (1301-2505002 / 1-301-2505002) +1-301-2505003 / 0111-301-2505003 (1301-2505003 / 1-301-2505003) +1-301-2505004 / 0111-301-2505004 (1301-2505004 / 1-301-2505004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2505995 / 0111-301-2505995 (1301-2505995 / 1-301-2505995) +1-301-2505996 / 0111-301-2505996 (1301-2505996 / 1-301-2505996) +1-301-2505997 / 0111-301-2505997 (1301-2505997 / 1-301-2505997) +1-301-2505998 / 0111-301-2505998 (1301-2505998 / 1-301-2505998) +1-301-2505999 / 0111-301-2505999 (1301-2505999 / 1-301-2505999)