Concentration of Credit Risk

3 Months Ended

Oct. 25, 2014

The Company’s customer base is highly concentrated, with its top five customers in each period accounting for approximately 59.4% and 57.2% of its total revenues during the three months ended October 25, 2014 and October 26, 2013, respectively. Customers whose revenues exceeded 10% of total revenue during the three months ended October 25, 2014 or October 26, 2013 are as follows:



	For the Three Months Ended
	October 25, 2014	October 26, 2013
AT&T Inc.	21.2%	17.5%
CenturyLink, Inc.	13.1%	15.5%
Comcast Corporation	12.8%	10.5%

Customers representing 10% or more of combined amounts of trade accounts receivable and costs and estimated earnings in excess of billings, net as of October 25, 2014 or July 26, 2014 had the following outstanding balances and the related percentage of the Company’s total outstanding balances:



	October 25, 2014				July 26, 2014
	Amount		% of Total		Amount		% of Total
			(Dollars in millions)
AT&T Inc.	$	100.3	18.5	%	$	87.6	17.9	%
CenturyLink, Inc.	$	58.2	10.8	%	$	48.2	9.8	%
Comcast Corporation	$	57.1	10.6	%	$	48.9	9.9	%

- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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