News Release

Spok Sets Date to Report 2018 First Quarter Results

Investor Conference Call Scheduled

SPRINGFIELD, Va.–(BUSINESS WIRE)–April 19, 2018— Spok Holdings, Inc. (NASDAQ: SPOK), a global leader in critical communications, today announced it will report operating results for the first quarter ended March 31, 2018 on Wednesday, April 25, 2018 after market close, at approximately 4:30 p.m. Eastern Time (ET).

In addition, the Company plans to host a conference call for investors to discuss its 2018 first quarter results at 10:00 a.m. ET on Thursday, April 26, 2018. Dial-in numbers for the call are 334-323-0522 or 877-260-1479. The pass code for the call is 9101087. A replay of the call will be available from 1:00 p.m. ET on April 26, 2018 until 1:00 p.m. ET on Thursday, May 10, 2018. To listen to the replay, please register at http://tinyurl.com/Spok2018Q1earningsreplay. Please cut and paste this address into your browser, enter the registration information, and you will be given access to the replay.