Segment information: (Tables)

6 Months Ended

Jun. 30, 2019

Segment information:

Schedule of service revenue by geographic region and product class and long lived assets by geographic region

9. Segment information:

The Company operates as one operating segment. The Company’s service revenue by geographic region and product class and long lived assets by geographic region are as follows (in thousands):

Three months Ended June 30, 2019
Revenues	On net		Off-net		Non-core		Total
North America	$	78,484	$	32,864	$	111	$	111,459
Europe		17,789		4,113		15		21,917
Latin America		71		3		—		74
Asia Pacific		1,128		211		—		1,339
Total	$	97,472	$	37,191	$	126	$	134,789

Three months Ended June 30, 2018
Revenues	On net		Off-net		Non-core		Total
North America	$	74,088	$	32,028	$	149	$	106,265
Europe		18,382		3,942		14		22,338
Asia Pacific		556		137		—		693
Total	$	93,026	$	36,107	$	163	$	129,296

Six months Ended June 30, 2019
Revenues	On net		Off-net		Non-core		Total
North America	$	156,462	$	65,499	$	197	$	222,158
Europe		35,969		8,139		41		44,149
Latin America		105		4		—		109
Asia Pacific		2,120		394		—		2,514
Total	$	194,656	$	74,036	$	238	$	268,930

Six months Ended June 30, 2018
Revenues	On net		Off-net		Non-core		Total
North America	$	147,144	$	64,020	$	313	$	211,477
Europe		37,259		7,968		26		45,253
Asia Pacific		1,009		263		—		1,272
Total	$	185,412	$	72,251	$	339	$	258,002

	June 30,		December 31,
	2019		2018
Long lived assets, net
North America	$	273,772	$	275,367
Europe and other		102,183		99,978
Total	$	375,955	$	375,345