Downloading whatPorts 1.1 for Mac from our website was free. This app's bundle is identified as com.davtri.whatPorts. The following version: 1.1 was the most frequently downloaded one by the program users. This free Mac application was originally produced by Davtri.com. The program is included in Security Tools. Our built-in antivirus scanned this Mac download and rated it as virus free.
From the developer:
whatPorts is a multi-threaded port scanner written in cocoa. This means you enter a computer's address, the port range you want to scan, and click the scan button. The scanner will cycle the ports on the host entered, and report back any ports that are open, attempting to match the port with it's registered port database to determine the service that is most likely running on that port.
You may want to check out more Mac applications, such as TelnetLauncher, which might be similar to whatPorts.