March 1 (Reuters) - Spok Holdings Inc SPOK.O :
* Spok reports fourth quarter and full year 2016 operating
results; software bookings increase from prior quarter
* Q4 earnings per share $0.15
* Q4 revenue $44.2 million versus $47.3 million
* Total paging ARPU (average revenue per unit) was $7.59 in
Q4 of 2016, compared to $7.79 in year-earlier quarter
* Expects total revenue to range from $161 million to $177
million in 2017
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