CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
REVENUE:
Total revenue	$ 107,721	$ 117,788	$ 211,020	$ 222,263
OPERATING EXPENSES (excluding depreciation and amortization unless otherwise indicated):
Termination and access fees	27,930	28,257	55,818	54,171
Engineering and operations	19,107	18,409	38,139	36,561
Sales, marketing and customer service	9,874	8,413	19,264	16,974
General and administrative	26,590	26,754	50,405	52,296
Transaction-related charges	28	438	68	465
Depreciation and amortization	21,549	21,913	42,267	43,217
(Gain) Loss on disposition of long-lived assets	(111)	(2,333)	191	(2,049)
Loss on damaged assets and other hurricane related charges, net of insurance recovery		184		666
Total operating expenses	104,967	102,035	206,152	202,301
Income from operations	2,754	15,753	4,868	19,962
OTHER INCOME (EXPENSE)
Interest income	517	487	1,445	853
Interest expense	(1,263)	(2,327)	(2,544)	(4,532)
Other expenses	(255)	(1,045)	(68)	(1,798)
Other expense, net	(1,001)	(2,885)	(1,167)	(5,477)
INCOME BEFORE INCOME TAXES	1,753	12,868	3,701	14,485
Income tax (benefit) provisions	(274)	2,088	939	6,008
NET INCOME	2,027	10,780	2,762	8,477
Net income attributable to non-controlling interests, net of tax expense of $0.3 million, $0.3 million, $0.7 million and $0.6 million, respectively.	(2,883)	(3,564)	(5,198)	(6,816)
NET INCOME (LOSS) ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS	$ (856)	$ 7,216	$ (2,436)	$ 1,661
NET INCOME (LOSS) PER WEIGHTED AVERAGE SHARE ATTRIBUTABLE TO ATN INTERNATIONAL, INC. STOCKHOLDERS:
Basic (in dollars per share)	$ (0.05)	$ 0.45	$ (0.15)	$ 0.10
Diluted (in dollars per share)	$ (0.05)	$ 0.45	$ (0.15)	$ 0.10
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
Basic (in shares)	15,997	15,962	15,986	15,996
Diluted (in shares)	15,997	16,010	15,986	16,046
DIVIDENDS PER SHARE APPLICABLE TO COMMON STOCK (in dollars per share)	$ 0.17	$ 0.17	$ 0.34	$ 0.34
Wireless
REVENUE:
Total revenue	$ 46,996	$ 50,496	$ 88,608	$ 101,043
Wireline
REVENUE:
Total revenue	59,276	61,269	119,473	109,365
Renewable Energy
REVENUE:
Total revenue	$ 1,449	$ 6,023	$ 2,939	$ 11,855