Area Code +351-254-(000000...009999) located in Peso da Régua, Viseu (18), more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 254 Subscriber Number From : 000000 Subscriber Number To : 009999 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 : ONITELECOM – INFOCOMUNICAÇÕES, 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 : 18 Region Name : Viseu City : Peso da Régua Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : 41.1700 Longitude : -7.7900 ‹ previous : +351-253-(990000...999999) next › : +351-254-(010000...019999) Dialling Instructions For trunk calls: - 254 000000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 254 000000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 000000 ~ 009999 (Count: 10,000) Example: +351-254-000000 / 00351-254-000000 (254-000000 / -254-000000) +351-254-000001 / 00351-254-000001 (254-000001 / -254-000001) +351-254-000002 / 00351-254-000002 (254-000002 / -254-000002) +351-254-000003 / 00351-254-000003 (254-000003 / -254-000003) +351-254-000004 / 00351-254-000004 (254-000004 / -254-000004) ...+351-254-xxxxxx / 00351-254-xxxxxx (254-xxxxxx / -254-xxxxxx) ...+351-254-009995 / 00351-254-009995 (254-009995 / -254-009995) +351-254-009996 / 00351-254-009996 (254-009996 / -254-009996) +351-254-009997 / 00351-254-009997 (254-009997 / -254-009997) +351-254-009998 / 00351-254-009998 (254-009998 / -254-009998) +351-254-009999 / 00351-254-009999 (254-009999 / -254-009999)