Segment information: (Tables)

9 Months Ended

Sep. 30, 2021

Segment information:

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

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 September 30, 2021
Revenues	On-net		Off-net		Non-core		Total
North America	$	85,569	$	31,945	$	147	$	117,661
Europe		21,658		4,379		25		26,062
South America		1,042		54		—		1,096
Asia Pacific		2,657		277		—		2,934
Africa		173		1		—		174
Total	$	111,099	$	36,656	$	172	$	147,927

Three Months Ended September 30, 2020
Revenues	On-net		Off-net		Non-core		Total
North America	$	82,730	$	32,416	$	107	$	115,253
Europe		19,966		4,422		12		24,400
South America		599		14		—		613
Asia Pacific		1,786		240		—		2,026
Africa		10		—		—		10
Total	$	105,091	$	37,092	$	119	$	142,302

Nine Months Ended September 30, 2021
Revenues	On-net		Off-net		Non-core		Total
North America	$	255,157	$	95,680	$	361	$	351,198
Europe		66,450		13,465		57		79,972
South America		2,859		119		—		2,978
Asia Pacific		7,279		812		—		8,091
Africa		342		3		—		345
Total	$	332,087	$	110,079	$	418	$	442,584

Nine Months Ended September 30, 2020
Revenues	On-net		Off-net		Non-core		Total
North America	$	247,679	$	97,951	$	369	$	345,999
Europe		58,433		12,781		32		71,246
South America		1,344		34		—		1,378
Asia Pacific		4,880		692		—		5,572
Africa		10		—		—		10
Total	$	312,346	$	111,458	$	401	$	424,205

	September 30,		December 31,
	2021		2020
Long lived assets, net
North America	$	326,350	$	306,652
Europe and other		128,372		123,699
Total	$	454,722	$	430,351