Area Code +1-202-(4178000...4178999) located in Washington, District of Columbia (DC), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 202 Subscriber Number From : 4178000 Subscriber Number To : 4178999 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 : BANDWIDTH.COM - 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 : DC Region Name : District of Columbia City : Washington Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.9000 Longitude : -77.0300 ‹ previous : +1-202-(4177000...4177999) next › : +1-202-(4179000...4179999) Dialling Instructions For trunk calls: 0 202 4178000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 202 4178000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4178000 ~ 4178999 (Count: 1,000) Example: +1-202-4178000 / 0111-202-4178000 (1202-4178000 / 1-202-4178000) +1-202-4178001 / 0111-202-4178001 (1202-4178001 / 1-202-4178001) +1-202-4178002 / 0111-202-4178002 (1202-4178002 / 1-202-4178002) +1-202-4178003 / 0111-202-4178003 (1202-4178003 / 1-202-4178003) +1-202-4178004 / 0111-202-4178004 (1202-4178004 / 1-202-4178004) ...+1-202-xxxxxxx / 0111-202-xxxxxxx (1202-xxxxxxx / 1-202-xxxxxxx) ...+1-202-4178995 / 0111-202-4178995 (1202-4178995 / 1-202-4178995) +1-202-4178996 / 0111-202-4178996 (1202-4178996 / 1-202-4178996) +1-202-4178997 / 0111-202-4178997 (1202-4178997 / 1-202-4178997) +1-202-4178998 / 0111-202-4178998 (1202-4178998 / 1-202-4178998) +1-202-4178999 / 0111-202-4178999 (1202-4178999 / 1-202-4178999)