Area Code +44-344-(6630000...6639999) located in National Number, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 344 Subscriber Number From : 6630000 Subscriber Number To : 6639999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : N (N) Carrier Name : Admiral Telecom Limited Click here to buy United Kingdom Area Code Database Other Information Language Code : en (English) Country Number : 826 (United Kingdom) Country Code : GB (United Kingdom) City : National Number Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.5000 Longitude : -0.1300 ‹ previous : +44-344-(6600000...6609999) next › : +44-344-(6640000...6649999) Dialling Instructions For trunk calls: 0 344 6630000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 344 6630000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6630000 ~ 6639999 (Count: 10,000) Example: +44-344-6630000 / 0044-344-6630000 (0344-6630000 / 0-344-6630000) +44-344-6630001 / 0044-344-6630001 (0344-6630001 / 0-344-6630001) +44-344-6630002 / 0044-344-6630002 (0344-6630002 / 0-344-6630002) +44-344-6630003 / 0044-344-6630003 (0344-6630003 / 0-344-6630003) +44-344-6630004 / 0044-344-6630004 (0344-6630004 / 0-344-6630004) ...+44-344-xxxxxxx / 0044-344-xxxxxxx (0344-xxxxxxx / 0-344-xxxxxxx) ...+44-344-6639995 / 0044-344-6639995 (0344-6639995 / 0-344-6639995) +44-344-6639996 / 0044-344-6639996 (0344-6639996 / 0-344-6639996) +44-344-6639997 / 0044-344-6639997 (0344-6639997 / 0-344-6639997) +44-344-6639998 / 0044-344-6639998 (0344-6639998 / 0-344-6639998) +44-344-6639999 / 0044-344-6639999 (0344-6639999 / 0-344-6639999)