UPDATE 2-Cogent Communications Q3 rev misses Street, shares down

* Q3 loss $0.07/shr vs est loss of $0.08/shr

* Q3 services revenue up 10.3 pct, miss est

* Shares down as much as 15 pct (Recasts; adds details, analyst comment, updates share movement)

By Shrutika Verma

BANGALORE, Nov 9 (Reuters) - Internet services provider Cogent Communications Group Inc (CCOI.O) posted a narrower-than-expected quarterly loss but failed to meet the market view on sales, sending its shares down as much as 15 percent.

Adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) rose 20.1 percent to $17 million, falling short of analyst expectations.

"They missed on both revenue and EBITDA, their guidance looks to be difficult to achieve this year in terms of top-line growth of 10 to 20 percent," Wells Fargo Securities analyst Jennifer Fritzsche said, however, adding that Cogent's outlook is "aggressive."

"ARPU (average revenue per user) came in less than what we were expecting because we have seen a greater take rate of lower price plans... and customer additions were less than expected," she said.

Third-quarter total customer connections increased 23.8 percent to 20,988 from a year earlier, slower than the 26 percent rise the company had reported in its second quarter.