ipconv is a package providing utility functions to convert ip with high performance.
Here is the benchmark with 2.4 GHz 8-Core Intel Core i9:
$GOMAXPROCS=1 go test -bench='Ipconv' -benchmem -benchtime=10s Benchmark_Ipconv_V42Long60473498818.5 ns/op 0B/op 0 allocs/op
Benchmark_Ipconv_Long2V480324688615.0 ns/op 0B/op 0 allocs/op