Area Code +44-7700-(300000...399999) located in Mobile Telephony, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 7700 Subscriber Number From : 300000 Subscriber Number To : 399999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : Sure (Jersey) 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 : Mobile Telephony 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 : +44-7700-(100000...199999) next › : +44-7700-(700000...799999) Dialling Instructions For trunk calls: 0 7700 300000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 7700 300000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 300000 ~ 399999 (Count: 100,000) Example: +44-7700-300000 / 0044-7700-300000 (07700-300000 / 0-7700-300000) +44-7700-300001 / 0044-7700-300001 (07700-300001 / 0-7700-300001) +44-7700-300002 / 0044-7700-300002 (07700-300002 / 0-7700-300002) +44-7700-300003 / 0044-7700-300003 (07700-300003 / 0-7700-300003) +44-7700-300004 / 0044-7700-300004 (07700-300004 / 0-7700-300004) ...+44-7700-xxxxxx / 0044-7700-xxxxxx (07700-xxxxxx / 0-7700-xxxxxx) ...+44-7700-399995 / 0044-7700-399995 (07700-399995 / 0-7700-399995) +44-7700-399996 / 0044-7700-399996 (07700-399996 / 0-7700-399996) +44-7700-399997 / 0044-7700-399997 (07700-399997 / 0-7700-399997) +44-7700-399998 / 0044-7700-399998 (07700-399998 / 0-7700-399998) +44-7700-399999 / 0044-7700-399999 (07700-399999 / 0-7700-399999)