How to export server names from certin IP range?

[#1]

We have 192.168.140.0/22 subnet and I want to know how to export all servers DNS names for 141/142/143 to move them to 192.168.140.0 because before we used to use 140 for physical servers and the others for virtual but no we only have virtual servers?

[#2]

Can you provide a little more detail into what you're looking to accomplish here?  In order to provide assistance, you'll have to be a bit clearer.  Are you looking to export records? Are you looking to export options?