Area Code +44-20-(31000000...31009999) located in London, City of London (LND), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 20 Subscriber Number From : 31000000 Subscriber Number To : 31009999 National Destination Code Length : 2 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : COLT Technology Services 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) Region Code : LND Region Name : City of London City : London 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 : +44-20-(30990000...30999999) next › : +44-20-(31010000...31019999) Dialling Instructions For trunk calls: 0 20 31000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 20 31000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 31000000 ~ 31009999 (Count: 10,000) Example: +44-20-31000000 / 0044-20-31000000 (020-31000000 / 0-20-31000000) +44-20-31000001 / 0044-20-31000001 (020-31000001 / 0-20-31000001) +44-20-31000002 / 0044-20-31000002 (020-31000002 / 0-20-31000002) +44-20-31000003 / 0044-20-31000003 (020-31000003 / 0-20-31000003) +44-20-31000004 / 0044-20-31000004 (020-31000004 / 0-20-31000004) ...+44-20-xxxxxxxx / 0044-20-xxxxxxxx (020-xxxxxxxx / 0-20-xxxxxxxx) ...+44-20-31009995 / 0044-20-31009995 (020-31009995 / 0-20-31009995) +44-20-31009996 / 0044-20-31009996 (020-31009996 / 0-20-31009996) +44-20-31009997 / 0044-20-31009997 (020-31009997 / 0-20-31009997) +44-20-31009998 / 0044-20-31009998 (020-31009998 / 0-20-31009998) +44-20-31009999 / 0044-20-31009999 (020-31009999 / 0-20-31009999)
