Area Code +351-254-(100000...109999) 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 : 100000 Subscriber Number To : 109999 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 : OPTIMUS - 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 : 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 : +351-254-(090000...099999) next › : +351-254-(110000...119999) Dialling Instructions For trunk calls: - 254 100000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 254 100000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 100000 ~ 109999 (Count: 10,000) Example: +351-254-100000 / 00351-254-100000 (254-100000 / -254-100000) +351-254-100001 / 00351-254-100001 (254-100001 / -254-100001) +351-254-100002 / 00351-254-100002 (254-100002 / -254-100002) +351-254-100003 / 00351-254-100003 (254-100003 / -254-100003) +351-254-100004 / 00351-254-100004 (254-100004 / -254-100004) ...+351-254-xxxxxx / 00351-254-xxxxxx (254-xxxxxx / -254-xxxxxx) ...+351-254-109995 / 00351-254-109995 (254-109995 / -254-109995) +351-254-109996 / 00351-254-109996 (254-109996 / -254-109996) +351-254-109997 / 00351-254-109997 (254-109997 / -254-109997) +351-254-109998 / 00351-254-109998 (254-109998 / -254-109998) +351-254-109999 / 00351-254-109999 (254-109999 / -254-109999)