Area Code +351-300-(300000...309999) located in VoIP, more detail is as below. Place International Dialing Code : 351 International Prefix : 00 National Destination Code : 300 Subscriber Number From : 300000 Subscriber Number To : 309999 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-(000000...009999) next › : +351-300-(400000...409999) Dialling Instructions For trunk calls: - 300 300000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 00 351 300 300000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 300000 ~ 309999 (Count: 10,000) Example: +351-300-300000 / 00351-300-300000 (300-300000 / -300-300000) +351-300-300001 / 00351-300-300001 (300-300001 / -300-300001) +351-300-300002 / 00351-300-300002 (300-300002 / -300-300002) +351-300-300003 / 00351-300-300003 (300-300003 / -300-300003) +351-300-300004 / 00351-300-300004 (300-300004 / -300-300004) ...+351-300-xxxxxx / 00351-300-xxxxxx (300-xxxxxx / -300-xxxxxx) ...+351-300-309995 / 00351-300-309995 (300-309995 / -300-309995) +351-300-309996 / 00351-300-309996 (300-309996 / -300-309996) +351-300-309997 / 00351-300-309997 (300-309997 / -300-309997) +351-300-309998 / 00351-300-309998 (300-309998 / -300-309998) +351-300-309999 / 00351-300-309999 (300-309999 / -300-309999)