Example address prefix given below
12cgpRC5r7zakGBfRGf5RQfGCgTnp7K1Yb 12cgpFkDMJXdwck9YHrrFsWP8PgxXjtBS7 12cgpcjw2628NPAPMvzSWF9Vh2tcUJrpAa 12cgpDmDJnugoRHeAfief7KSiUFvNPF5MY 12cgpz1PwVesaKArAR53W3owQy32XKuuxT
So first 5 letters are common prefix for all address 12cgp