During the years ended December 31, 2015 and 2014, the Company entered into several equipment financing or capital lease arrangements to finance the purchase of network hardware and software utilized in the Company’s operations.  These arrangements require monthly payments over a period of 24 to 48 months with interest rates ranging between 5.3% and 6.6%.  

The Company’s equipment financing obligations at December 31, 2015 and 2014 are as follows:

The estimated principal payments under capital lease agreements for the years ending subsequent to December 31, 2015 are as follows: