Get ANSI Encoding by LCID in .NET Framework

GetAnsiEncodingByLCID.cs

using System.Runtime.InteropServices;
using System.Text;

namespace App.Encoding
{
    class Program
    {
        [DllImport("kernel32.dll")]
        static extern int GetSystemDefaultLCID();

        private static readonly Dictionary<int, int> _lcidToCodePage = new()
        {
            {1025, 1256}, {1026, 1251}, {1028, 950}, {1029, 1250}, {1032, 1253}, {1037, 1255},
            {1038, 1250}, {1041, 932}, {1042, 949}, {1045, 1250}, {1048, 1250}, {1049, 1251},
            {1050, 1250}, {1051, 1250}, {1052, 1250}, {1054, 874}, {1055, 1254}, {1056, 1256},
            {1058, 1251}, {1059, 1251}, {1060, 1250}, {1061, 1257}, {1062, 1257}, {1063, 1257},
            {1065, 1256}, {1066, 1258}, {1068, 1250}, {1071, 1251}, {1080, 1256}, {1087, 1251},
            {1088, 1251}, {1091, 1250}, {1092, 1251}, {1104, 1251}, {2049, 1256}, {2052, 936},
            {2074, 1250}, {2080, 1256}, {2087, 1257}, {2092, 1251}, {2115, 1251}, {3073, 1256},
            {3076, 950}, {3098, 1251}, {4097, 1256}, {4100, 936}, {5121, 1256}, {5124, 950},
            {6145, 1256}, {6153, 1256}, {7169, 1256}, {8193, 1256}, {9217, 1256}, {9225, 1256},
            {10241, 1256}, {11265, 1256}, {12289, 1256}, {13313, 1256}, {14337, 1256},
            {15361, 1256}, {16385, 1256}
        };

        static Encoding GetAnsiEncodingByLCID(int lcid)
        {
            if (!_lcidToCodePage.TryGetValue(lcid, out var codepage))
            {
                codepage = 1252;
            }
            return Encoding.GetEncoding(codepage);
        }

        static void Main()
        {
            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);

            var lcid = GetSystemDefaultLCID();

            var encoding = GetAnsiEncodingByLCID(lcid);
            var s = $"{encoding.EncodingName}, {encoding.WebName}, {encoding.HeaderName}, {encoding.BodyName}";
            Console.WriteLine(s);
        }
    }
}