Area Code +44-56-(02310000...02319999) located in VoIP, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 56 Subscriber Number From : 02310000 Subscriber Number To : 02319999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : BT 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 : VoIP 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 : +44-56-(02300000...02309999) next › : +44-56-(02320000...02329999) Dialling Instructions For trunk calls: 0 56 02310000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 56 02310000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 02310000 ~ 02319999 (Count: 10,000) Example: +44-56-02310000 / 0044-56-02310000 (056-02310000 / 0-56-02310000) +44-56-02310001 / 0044-56-02310001 (056-02310001 / 0-56-02310001) +44-56-02310002 / 0044-56-02310002 (056-02310002 / 0-56-02310002) +44-56-02310003 / 0044-56-02310003 (056-02310003 / 0-56-02310003) +44-56-02310004 / 0044-56-02310004 (056-02310004 / 0-56-02310004) ...+44-56-xxxxxxxx / 0044-56-xxxxxxxx (056-xxxxxxxx / 0-56-xxxxxxxx) ...+44-56-02319995 / 0044-56-02319995 (056-02319995 / 0-56-02319995) +44-56-02319996 / 0044-56-02319996 (056-02319996 / 0-56-02319996) +44-56-02319997 / 0044-56-02319997 (056-02319997 / 0-56-02319997) +44-56-02319998 / 0044-56-02319998 (056-02319998 / 0-56-02319998) +44-56-02319999 / 0044-56-02319999 (056-02319999 / 0-56-02319999)