How to filter and check DND or non DND numbers?

You can use the option http://checkdnd.msg91.com/  to filter the DND or non-DND numbers in just 2 simple steps:

1. Select the option "Check whole contact file".

2. Choose the file and checkmark "I'm not a robot", now click on get NDNC or get non-NDNC as per your need. 

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