Area Code +44-29-(20120000...20129999) located in Cardiff, Cardiff (CRF), more detail is as below. Place International Dialing Code : 44 International Prefix : 00 National Prefix : 0 National Destination Code : 29 Subscriber Number From : 20120000 Subscriber Number To : 20129999 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 : Served Up 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) Region Code : CRF Region Name : Cardiff City : Cardiff Timezone : Europe/London Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 51.4800 Longitude : -3.1800 ‹ previous : +44-29-(20110000...20119999) next › : +44-29-(20130000...20139999) Dialling Instructions For trunk calls: 0 29 20120000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 44 29 20120000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 20120000 ~ 20129999 (Count: 10,000) Example: +44-29-20120000 / 0044-29-20120000 (029-20120000 / 0-29-20120000) +44-29-20120001 / 0044-29-20120001 (029-20120001 / 0-29-20120001) +44-29-20120002 / 0044-29-20120002 (029-20120002 / 0-29-20120002) +44-29-20120003 / 0044-29-20120003 (029-20120003 / 0-29-20120003) +44-29-20120004 / 0044-29-20120004 (029-20120004 / 0-29-20120004) ...+44-29-xxxxxxxx / 0044-29-xxxxxxxx (029-xxxxxxxx / 0-29-xxxxxxxx) ...+44-29-20129995 / 0044-29-20129995 (029-20129995 / 0-29-20129995) +44-29-20129996 / 0044-29-20129996 (029-20129996 / 0-29-20129996) +44-29-20129997 / 0044-29-20129997 (029-20129997 / 0-29-20129997) +44-29-20129998 / 0044-29-20129998 (029-20129998 / 0-29-20129998) +44-29-20129999 / 0044-29-20129999 (029-20129999 / 0-29-20129999)