initial

src/PhoneNumbers/CountryInfo_Europe.cs

@@ -5,6 +5,19 @@ namespace PhoneNumbers;
 
 public partial class CountryInfo
 {
+    /// <summary>
+    /// Gets the <see cref="CountryInfo"/> for Albania.
+    /// </summary>
+    public static CountryInfo Albania { get; } = new()
+    {
+        CallingCode = "355",
+        Continent = Europe,
+        Iso3166Code = "AL",
+        Name = "Albania",
+        NsnLengths = new ReadOnlyCollection<int>(new[] { 8 }),
+        TrunkPrefix = "0",
+    };
+
     /// <summary>
     /// Gets the <see cref="CountryInfo"/> for Austria.
     /// </summary>

src/PhoneNumbers/DataFiles/AL.txt

@@ -0,0 +1,2 @@
+# References:
+# - https://www.itu.int/dms_pub/itu-t/oth/02/02/T02020000020002PDFE.pdf

test/PhoneNumbers.Tests/CountryInfo_Europe_Tests.cs

@@ -4,6 +4,26 @@ namespace PhoneNumbers.Tests;
 
 public class CountryInfo_Europe_Tests
 {
+    [Fact]
+    public void CountryInfo_Albania()
+    {
+        Assert.Same(CountryInfo.Albania, CountryInfo.Albania);
+
+        var countryInfo = CountryInfo.Albania;
+
+        Assert.False(countryInfo.AllowsLocalGeographicDialling);
+        Assert.Equal("355", countryInfo.CallingCode);
+        Assert.Equal(CountryInfo.Europe, countryInfo.Continent);
+        Assert.IsType<ComplexPhoneNumberFormatProvider>(countryInfo.FormatProvider);
+        Assert.False(countryInfo.IsEuropeanUnionMember);
+        Assert.Equal("AL", countryInfo.Iso3166Code);
+        Assert.Equal("Albania", countryInfo.Name);
+        Assert.Empty(countryInfo.NdcLengths);
+        Assert.Equal(new[] { 8 }, countryInfo.NsnLengths);
+        Assert.False(countryInfo.SharesCallingCode);
+        Assert.Equal("0", countryInfo.TrunkPrefix);
+    }
+
     [Fact]
     public void CountryInfo_Austria()
     {

test/PhoneNumbers.Tests/PhoneNumber_Parse_Europe_Tests.cs

@@ -2,6 +2,14 @@ namespace PhoneNumbers.Tests;
 
 public class PhoneNumber_Parse_Europe_Tests
 {
+    [Fact]
+    public void Parse_Value_For_Albania_CallingCode()
+    {
+        var phoneNumber = PhoneNumber.Parse("+35542259571");
+        Assert.NotNull(phoneNumber);
+        Assert.Equal(CountryInfo.Albania, phoneNumber.Country);
+    }
+
     [Fact]
     public void Parse_Value_For_Austria_CallingCode()
     {

test/PhoneNumbers.Tests/PhoneNumber_ToString_Europe_Tests.cs

@@ -2,6 +2,13 @@ namespace PhoneNumbers.Tests;
 
 public class PhoneNumber_ToString_Europe_Tests
 {
+    [Theory]
+    [InlineData("+35542259571", "E.123", "+355 4 2259571")]
+    [InlineData("+35542259571", "N", "04 2259571")]
+    [InlineData("+35542259571", "RFC3966", "tel:+355-4-2259571")]
+    public void Albania_Numbers(string input, string format, string expected) =>
+        Assert.Equal(expected, PhoneNumber.Parse(input).ToString(format));
+
     [Theory]
     [InlineData("+375172171185", "E.123", "+375 17 2171185")]
     [InlineData("+375172171185", "N", "817 2171185")]