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Customer Concentration and Revenue Information (Tables) | 12 Months Ended
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Jan. 29, 2022
Risks and Uncertainties [Abstract] |
Customer Credit Concentration | Customers whose combined amounts of accounts receivable and contract assets, net exceeded 10% of total combined accounts receivable and contract assets, net as of January 29, 2022 or January 30, 2021 were as follows (dollars in millions):
| January 29, 2022 |  | January 30, 2021
| Amount |  | % of Total |  | Amount |  | % of Total
Lumen Technologies (1) | $ | 166.0 |  |  | 18.4 | % |  | $ | 173.5 |  |  | 16.6 | %
Verizon Communications Inc. | $ | 144.3 |  |  | 16.0 | % |  | $ | 389.9 |  |  | 37.4 | %
Comcast Corporation | $ | 113.5 |  |  | 12.6 | % |  | $ | 131.7 |  |  | 12.6 | %
AT&T Inc. | $ | 106.0 |  |  | 11.7 | % |  | $ | 71.7 |  |  | 6.9 | %
(1) Formerly known as CenturyLink, Inc. Customers whose contract revenues exceeded 10% of total contract revenues during fiscal 2022, fiscal 2021, and fiscal 2020, as well as total contract revenues from all other customers combined, were as follows:
| Fiscal Year Ended
| January 29, 2022 |  | January 30, 2021 |  | January 25, 2020
| Amount | % of Total |  | Amount | % of Total |  | Amount | % of Total
AT&T Inc. | $ | 735.2 |  | 23.5 | % |  | $ | 533.7 |  | 16.7 | % |  | $ | 687.9 |  | 20.6 | %
Comcast Corporation | 473.8 |  | 15.1 | % |  | 533.9 |  | 16.7 | % |  | 503.2 |  | 15.1 | %
Lumen Technologies (1) | 373.0 |  | 11.9 | % |  | 542.0 |  | 16.9 | % |  | 547.8 |  | 16.4 | %
Verizon Communications Inc. | 352.6 |  | 11.3 | % |  | 601.6 |  | 18.8 | % |  | 728.2 |  | 21.8 | %
Total other customers combined | 1,195.9 |  | 38.2 | % |  | 988.0 |  | 30.9 | % |  | 872.6 |  | 26.1 | %
Total contract revenues | $ | 3,130.5 |  | 100.0% |  | $ | 3,199.2 |  | 100.0% |  | $3,339.7 | 100.0%
(1) Formerly known as CenturyLink, Inc. Total contract revenues by customer type during fiscal 2022, fiscal 2021, and fiscal 2020, were as follows (dollars in millions):
| Fiscal Year Ended
| January 29, 2022 |  | January 30, 2021 |  | January 25, 2020
| Amount | % of Total |  | Amount | % of Total |  | Amount | % of Total
Telecommunications | $ | 2,777.6 |  | 88.7% |  | $ | 2,851.6 |  | 89.1% |  | $ | 3,031.9 |  | 90.8%
Underground facility locating | 255.4 |  | 8.2% |  | 229.6 |  | 7.2% |  | 204.5 |  | 6.1%
Electrical and gas utilities and other | 97.5 |  | 3.1% |  | 118.0 |  | 3.7% |  | 103.3 |  | 3.1%
Total contract revenues | $ | 3,130.5 |  | 100.0% |  | $ | 3,199.2 |  | 100.0% |  | $ | 3,339.7 |  | 100.0%

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