Area Code +351-274-(830000...839999) located in Proença-a-Nova, Castelo Branco (05), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 274 Subscriber Number From : 830000 Subscriber Number To : 839999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : PT - COMUNICAÇÕES, S.A. Click here to buy Portugal Area Code Database Other Information Language Code : pt (Portuguese) Country Number : 620 (Portugal) Country Code : PT (Portugal) Region Code : 05 Region Name : Castelo Branco City : Proença-a-Nova Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 39.7500 Longitude : -7.9300 ‹ previous : +351-274-(820000...829999) next › : +351-274-(840000...849999) Dialling Instructions For trunk calls: - 274 830000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 274 830000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 830000 ~ 839999 (Count: 10,000) Example: +351-274-830000 / 00351-274-830000 (274-830000 / -274-830000) +351-274-830001 / 00351-274-830001 (274-830001 / -274-830001) +351-274-830002 / 00351-274-830002 (274-830002 / -274-830002) +351-274-830003 / 00351-274-830003 (274-830003 / -274-830003) +351-274-830004 / 00351-274-830004 (274-830004 / -274-830004) ...+351-274-xxxxxx / 00351-274-xxxxxx (274-xxxxxx / -274-xxxxxx) ...+351-274-839995 / 00351-274-839995 (274-839995 / -274-839995) +351-274-839996 / 00351-274-839996 (274-839996 / -274-839996) +351-274-839997 / 00351-274-839997 (274-839997 / -274-839997) +351-274-839998 / 00351-274-839998 (274-839998 / -274-839998) +351-274-839999 / 00351-274-839999 (274-839999 / -274-839999)