Spok (SPOK) 8-K/A Changes in Registrant.s Certifying Accountant

Exhibit 16

June 23, 2006

Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549

Commissioners:

We have read the statements made by USA Mobility, Inc. (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to Item 4.01 of Form 8-K, as part of the Form 8-K of USA Mobility, Inc dated June 16, 2006. We agree with the statements concerning our Firm contained in such Form 8-K. However, we make no comment whatsoever regarding the current status of the four material weaknesses in such Form 8-K and no comment whatsoever regarding current status of any remediation actions taken by the Company with respect to the four material weaknesses.

Very truly yours,

PricewaterhouseCoopers LLP