Portugal is country code +351. The plus sign means "insert your international access prefix here." That prefix is 011 from North America, 00 from most of Europe and many other countries, 0011 from Australia, and various other prefixes in other countries.
Since Portugal does not use a trunk code '0' for domestic numbers, you just add the nine-digit Portuguese number after the country code.
Dial:
(international access prefix) + (country code 351) + (9-digit number)
Portugal is country code +351.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
International : +351
mobile : 91/93/96 depending cell phone operator
fixed-line : 21/22/etc depending region
The country code and area code of Arganil, Portugal is 351, 235.
The country code and area code of Castelo Branco, Portugal is 351, 272.
The country code and area code of Funchal, Portugal is 351, 291.
Country code +57 is Colombia.
Not a valid code. Telephone country codes never begin with zero, and 0000 is not a valid international access prefix anywhere in the world.
The country code and area code of Arganil, Portugal is 351, 235.
The country code and area code of Castelo Branco, Portugal is 351, 272.
The country code and area code of Lisboa, Portugal is 351, 21.
The country code and area code of Beja, Portugal is 351, 284.
The country code and area code of Braga, Portugal is 351, 253.
The country code and area code of Chaves, Portugal is 351, 276.
The country code and area code of Faro, Portugal is 351, 289.
The country code and area code of Guarda, Portugal is 351, 271.
The country code and area code of Horta, Portugal is 351, 292.
The country code and area code of Leiria, Portugal is 351, 244.
The country code and area code of Mealhada, Portugal is 351, 231.
The country code and area code of Moncorvo, Portugal is 351, 279.