Area Code +351-304-(500000...509999) located in VoIP, more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 304 Subscriber Number From : 500000 Subscriber Number To : 509999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 9 Number Type : G (Geographic Land Line, Fixed Line) Click here to buy Portugal Area Code Database Other Information Language Code : pt (Portuguese) Country Number : 620 (Portugal) Country Code : PT (Portugal) City : VoIP Timezone : Europe/Lisbon Coordinated Universal Time : +00:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 9 Latitude : None Longitude : None ‹ previous : +351-303-(000000...009999) next › : +351-305-(550000...559999) Dialling Instructions For trunk calls: - 304 500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 304 500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 500000 ~ 509999 (Count: 10,000) Example: +351-304-500000 / 00351-304-500000 (304-500000 / -304-500000) +351-304-500001 / 00351-304-500001 (304-500001 / -304-500001) +351-304-500002 / 00351-304-500002 (304-500002 / -304-500002) +351-304-500003 / 00351-304-500003 (304-500003 / -304-500003) +351-304-500004 / 00351-304-500004 (304-500004 / -304-500004) ...+351-304-xxxxxx / 00351-304-xxxxxx (304-xxxxxx / -304-xxxxxx) ...+351-304-509995 / 00351-304-509995 (304-509995 / -304-509995) +351-304-509996 / 00351-304-509996 (304-509996 / -304-509996) +351-304-509997 / 00351-304-509997 (304-509997 / -304-509997) +351-304-509998 / 00351-304-509998 (304-509998 / -304-509998) +351-304-509999 / 00351-304-509999 (304-509999 / -304-509999)