The country dialling code for Portugal is +351or 00351 (they're both identical).
If you want to make a call to Portugal from abroad, you have to dial the following country code +351 (or 00351) followed by the national telephone number.
National telephone number: 884 123 456 (for local calls)
International telephone number: +351 884 123 456 (for calling from abroad to Portugal)
Capital : Lisbon
Population : 10 374 822 Inhabitants
Time : 2018-12-11 15:26
Time zone : Europe/Lisbon