DNS Tools - Batch Queries Tool
does bulk lookups of IP addresses or hostnames

NetScanTools Pro DNS Tools - Batch Queries Tool Description

The DNS Tools - Batch Queries tool multifunction tool that allows you to lookup or resolve IPv4 addresses to hostnames, hostnames to IP addresses, verify and audit IPv4 address/hostname mappings.

There are two modes of operation: the first uses the default DNS servers assigned to your computer; the second uses a DNS that you have specified.

Batch Query Tool for looking up a large number of IP addresses or hostnames. Create a list of hostnames or IPv4 addresses to be resolved using several different methods including manual entry, IP range generation, or import of a text file (see image #2 below). Pressing the Lookup IP|Hostname button initiates a parallel, multi-threaded action of resolving IP addresses to hostnames or vice versa using your default DNS. Upon completion of the DNS resolving process, we display the country that is assigned or allocated the IPv4 address. See the first image below.

DNS Verify Tool. This tool takes a list of IPv4 addresses, resolves them as a batch to hostnames using your default DNS or a user-defined DNS, then takes each hostname and resolves it back to an IPv4 address. IP address mismatches are shown in red. This important feature allows you to check a DNS for errors. This tools works rapidly over the whole list of IP addresses. There is a similar tool in the DNS Tools - Advanced tool that processes one IP address at a time instead of in batch mode.

Screenshots

DEMO Version End User License Agreement (EULA)
How to Uninstall