Convert IP integer address to a string

IPIntegerToString2.cs

// Follow up of https://twitter.com/stebets/status/739563007202758656
private static readonly string[] ByteToString = Enumerable.Range(0, 256).Select(x => x.ToString()).ToArray();

public unsafe static string FastIntegerToIPAddress2(uint input)
{
	// t3.t2.t1.t0
	var t0 = ByteToString[input & 0xFF];
	input = input >> 8;
	var t1 = ByteToString[input & 0xFF];
	input = input >> 8;
	var t2 = ByteToString[input & 0xFF];
	input = input >> 8;
	var t3 = ByteToString[input & 0xFF];
	var value = new string('\0', t0.Length + t1.Length + t2.Length + t3.Length + 3);
	fixed (char* t = value)
	{
		var ptr = t;
		foreach (var c in t3) *ptr++ = c;
		*ptr++ = '.';
		foreach (var c in t2) *ptr++ = c;
		*ptr++ = '.';
		foreach (var c in t1) *ptr++ = c;
		*ptr++ = '.';
		foreach (var c in t0) *ptr++ = c;
	}

	return value;
}

//                        Method |     Median |    StdDev |    Gen 0 | Gen 1 | Gen 2 | Bytes Allocated/Op |
// ----------------------------- |----------- |---------- |--------- |------ |------ |------------------- |
//   BenchFastIntegerToIPAddress | 23.7875 ns | 0.2003 ns | 1,131.00 |     - |     - |              14.40 |
//  BenchFastIntegerToIPAddress2 | 19.7718 ns | 0.2177 ns | 1,139.00 |     - |     - |              14.40 |