Zip Code Boundaries - Fill by group based on join

[ChristopherMcKinnish]

Zip Code Boundaries - Fill by group based on join.

Given:  Zip Code file containing Zip_Code, and an assigned Value Representing a Servicing Facility.

I simply want to join this file to the zip layer, then fill the boundaries with color based upon the assigned value, which would produce a visibly grouping by servicing facility.

This seems like a very basic exercise, yet I cannot find any information about this, or maybe i'm using the wrong verbiage. 

Any direction and help is appreciated.

Chris

[AbdullahAnter]

Did you try to use Spatial Join?

[ChristopherMcKinnish]

Probably should have been more specific.  Yes, I used spatial join.  I have the join, but cannot get the grouping from my excel spreadsheet to display to group by servicing facility.

[AbdullahAnter]

Did you try to Group using Dissolve tool?

Dissolve—Help | ArcGIS Desktop