Area Code +44-5601-(230000...239999) located in VoIP, more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 5601 Subscriber Number From : 230000 Subscriber Number To : 239999 National Destination Code Length : 4 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : V (VoIP, Location Independent fixed land line) Carrier Name : QiComm Ltd 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 : 51.5100 Longitude : -0.1300 ‹ previous : +44-5601-(220000...229999) next › : +44-5601-(240000...249999) Dialling Instructions For trunk calls: 0 5601 230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 5601 230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 230000 ~ 239999 (Count: 10,000) Example: +44-5601-230000 / 0044-5601-230000 (05601-230000 / 0-5601-230000) +44-5601-230001 / 0044-5601-230001 (05601-230001 / 0-5601-230001) +44-5601-230002 / 0044-5601-230002 (05601-230002 / 0-5601-230002) +44-5601-230003 / 0044-5601-230003 (05601-230003 / 0-5601-230003) +44-5601-230004 / 0044-5601-230004 (05601-230004 / 0-5601-230004) ...+44-5601-xxxxxx / 0044-5601-xxxxxx (05601-xxxxxx / 0-5601-xxxxxx) ...+44-5601-239995 / 0044-5601-239995 (05601-239995 / 0-5601-239995) +44-5601-239996 / 0044-5601-239996 (05601-239996 / 0-5601-239996) +44-5601-239997 / 0044-5601-239997 (05601-239997 / 0-5601-239997) +44-5601-239998 / 0044-5601-239998 (05601-239998 / 0-5601-239998) +44-5601-239999 / 0044-5601-239999 (05601-239999 / 0-5601-239999)