Concentration of Credit Risk (Tables)

3 Months Ended

Apr. 28, 2018

Schedule that Represents A Significant Portion of the Company’s Customer Base and Each Over 10% of Total Revenue

Customers whose combined amounts of trade accounts receivable and contract assets, net exceeded 10% of total combined accounts receivable and contract assets, net as of April 28, 2018 or January 27, 2018 were as follows (dollars in millions):



	April 28, 2018			January 27, 2018
	Amount		% of Total	Amount		% of Total
Comcast Corporation	$	164.2	22.2%	$	166.5	24.5%
Verizon Communications Inc.	$	156.5	21.1%	$	98.2	14.4%
CenturyLink, Inc.	$	120.3	16.3%	$	126.0	18.5%
AT&T Inc.	$	102.8	13.9%	$	79.2	11.6%

Customers whose contract revenues exceeded 10% of total contract revenues during the three months ended April 28, 2018 or April 29, 2017, as well as total contract revenues from all other customers combined, were as follows (dollars in millions):



	For the Three Months Ended
	April 28, 2018			April 29, 2017
	Amount		% of Total	Amount		% of Total
AT&T Inc.	$	177.0	24.2%	$	213.1	27.1%
Comcast Corporation	159.2		21.8	152.9		19.4
Verizon Communications Inc.	122.1		16.7	66.8		8.5
CenturyLink, Inc.⁽¹⁾	89.7		12.3	146.2		18.6
Total other customers combined	183.4		25.0	207.3		26.4
Total contract revenues	$	731.4	100.0%	$	786.3	100.0%

Total contract revenues by customer type during the three months ended April 28, 2018 and April 29, 2017 were as follows (dollars in millions):



	For the Three Months Ended
	April 28, 2018			April 29, 2017
	Amount		% of Total	Amount		% of Total
Telecommunications	$	667.2	91.2%	$	725.3	92.2%
Underground facility locating	45.1		6.2	42.1		5.4
Electrical and gas utilities and other	19.1		2.6	18.9		2.4
Total contract revenues	$	731.4	100.0%	$	786.3	100.0%