To easily manage a large number of DIDs, you may use DID Groups – a tool that allows arranging DID numbers into categories (for example, by geographic location).
To add a new DID Group click Add on the toolbar. Type a DID group name and a description for the group (optional). Click the Save icon.
Note that separating DID numbers into groups is an optional step which is solely intended to make DID number management more flexible and convenient.