Area Code +351-300-(500000...509999) located in VoIP, more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 300 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 : +351-300-(400000...409999) next › : +351-301-(000000...009999) Dialling Instructions For trunk calls: - 300 500000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 300 500000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 500000 ~ 509999 (Count: 10,000) Example: +351-300-500000 / 00351-300-500000 (300-500000 / -300-500000) +351-300-500001 / 00351-300-500001 (300-500001 / -300-500001) +351-300-500002 / 00351-300-500002 (300-500002 / -300-500002) +351-300-500003 / 00351-300-500003 (300-500003 / -300-500003) +351-300-500004 / 00351-300-500004 (300-500004 / -300-500004) ...+351-300-xxxxxx / 00351-300-xxxxxx (300-xxxxxx / -300-xxxxxx) ...+351-300-509995 / 00351-300-509995 (300-509995 / -300-509995) +351-300-509996 / 00351-300-509996 (300-509996 / -300-509996) +351-300-509997 / 00351-300-509997 (300-509997 / -300-509997) +351-300-509998 / 00351-300-509998 (300-509998 / -300-509998) +351-300-509999 / 00351-300-509999 (300-509999 / -300-509999)