American Tower Corp.  (AMT - Get Report) is expected to report quarterly earnings of 85 cents a share on sales of $1.8 billion before the market opens on Friday, based on a FactSet survey of 17 analysts.

In the same period a year ago, the company posted earnings of 63 cents a share on sales of $1.7 billion.

The stock has risen 11.4% since the company last reported earnings on Feb. 27.

Quarterly estimates have risen less than 1 cent a share in the past month.

American Tower is currently trading at a price-to-forward-earnings ratio of 51.4 based on the 12-month estimates of 17 analysts surveyed by FactSet.

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