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Segment Information and Major Customers | 12 Months Ended
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Dec. 31, 2022
Segment Reporting [Abstract] |
Segment Information and Major Customers | Note 18 – Segment Information and Major Customers The chief operating decision maker regularly reviews the Company’s financial performance based on two reportable segments: (1) Network Solutions and (2) Services & Support. The Network Solutions segment includes hardware and software products that enable a digital future which support the Company's Subscriber, Access and Aggregation, and Optical Networking Solutions. The Company's cloud-managed Wi-Fi gateways, virtualization software, and switches provide a mix of wired and wireless connectivity at the customer premises. In addition, its Carrier Ethernet products support a variety of applications at the network edge ranging from mobile backhaul to connecting enterprise customers (“Subscriber Solutions"). The Company's portfolio includes products for multi-gigabit service delivery over fiber or alternative media to homes and businesses. The Services & Support segment offers a comprehensive portfolio of network design, implementation, maintenance and cloud-hosted services supporting its Subscriber, Access and Aggregation, and Optical Networking Solutions. These services assist operators in the deployment of multi-vendor networks while reducing their cost to maintain these networks. The cloud-hosted services include a suite of SaaS applications under the Company's Mosaic One platform that manages end-to-end network and service optimization for both fiber access infrastructure and mesh Wi-Fi connectivity. The Company backs these services with a global support organization that offers on-site and off-site support services with varying SLAs. The performance of these segments is evaluated based on revenue, gross profit and gross margin; therefore, selling, general and administrative expenses, research and development expenses, interest and dividend income, interest expense, net investment (loss) gain, other income, net and income tax benefit (expense) are reported on a Company-wide basis only. There is no inter-segment revenue. Asset information by reportable segment is not produced and, therefore, is not reported. The following table presents information about revenue and gross profit of our reportable segments for each of the years ended December 31, 2022, 2021 and 2020:
|  | 2022 |  |  | 2021 |  |  | 2020 |
(In thousands) |  | Revenue |  |  | Gross Profit |  |  | Revenue |  |  | Gross Profit |  |  | Revenue |  |  | Gross Profit |
Network Solutions |  | $ | 916,793 |  |  | $ | 269,688 |  |  | $ | 498,834 |  |  | $ | 190,993 |  |  | $ | 438,015 |  |  | $ | 193,789 |
Services & Support |  |  | 108,743 |  |  |  | 57,564 |  |  |  | 64,170 |  |  |  | 27,384 |  |  |  | 68,495 |  |  |  | 23,762 |
Total |  | $ | 1,025,536 |  |  | $ | 327,252 |  |  | $ | 563,004 |  |  | $ | 218,377 |  |  | $ | 506,510 |  |  | $ | 217,551 |
For the years ended December 31, 2022, 2021 and 2020, $3.2 million, $1.2 million and $1.4 million, respectively, of depreciation expense was included in gross profit for our Network Solutions segment. For the years ended December 31, 2022, 2021 and 2020, $10 thousand, $14 thousand and $32 thousand, respectively, of depreciation expense was included in gross profit for our Services & Support segment. Revenue by Category In addition to its reportable segments, revenue is also reported for the following three categories – Subscriber Solutions, Access & Aggregation Solutions, and Optical Networking Solutions. Prior to the Business Combination with ADVA on July 15, 2022, ADTRAN reported revenue across the following three categories: (1) Access & Aggregation, (2) Subscriber Solutions & Experience and (3) Traditional & Other Products. Following the Business Combination with ADVA, the Company has recast these revenues such that ADTRAN’s former Access & Aggregation revenue is combined with a portion of the applicable ADVA solutions to create Access & Aggregation Solutions, ADTRAN’s former Subscriber Solutions & Experience revenue is combined with a portion of the applicable ADVA solutions to create Subscriber Solutions, and the revenue from Traditional & Other products is now included in the applicable Access & Aggregation Solutions or Subscriber Solutions category. Optical Networking Solutions is a new revenue category added to represent a meaningful portion of ADVA’s portfolio. Our Subscriber Solutions portfolio is used by service providers to terminate their access services infrastructure at the customer premises while providing an immersive and interactive experience for residential, business and wholesale subscribers. This revenue category includes hardware- and software-based products and services. These solutions include fiber termination solutions for residential, business and wholesale subscribers, Wi-Fi access solutions for residential and business subscribers, Ethernet switching and network edge virtualization solutions for business subscribers, and cloud software solutions covering a mix of subscriber types. Our Access & Aggregation Solutions are solutions that are used by communications service providers to connect residential subscribers, business subscribers and mobile radio networks to the service providers’ metro network, primarily through fiber-based connectivity. This revenue category includes hardware- and software-based products and services. Our solutions within this category are a mix of fiber access and aggregation platforms, precision network synchronization and timing solutions, and access orchestration solutions that ensure highly reliable and efficient network performance. Our Optical Networking Solutions are used by communications service providers, internet content providers and large-scale enterprises to securely interconnect metro and regional networks over fiber. This revenue category includes hardware- and software-based products and services. Our solutions within this category include open optical terminals, open line systems, optical subsystems and modules, network infrastructure assurance systems, and automation platforms that are used to build high-scale, secure and assured optical networks. The following tables disaggregate our revenue by category for the years ended December 31, 2022, 2021 and 2020:
|  | 2022 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 364,238 |  |  | $ | 26,216 |  |  | $ | 390,454 |
Access & Aggregation Solutions |  |  | 326,934 |  |  |  | 47,068 |  |  |  | 374,002 |
Optical Networking Solutions |  |  | 225,621 |  |  |  | 35,459 |  |  |  | 261,080 |
Total |  | $ | 916,793 |  |  | $ | 108,743 |  |  | $ | 1,025,536 |
|  | 2021 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 189,825 |  |  | $ | 16,385 |  |  | $ | 206,210 |
Access & Aggregation Solutions |  |  | 309,009 |  |  |  | 47,785 |  |  |  | 356,794 |
Optical Networking Solutions |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 498,834 |  |  | $ | 64,170 |  |  | $ | 563,004 |
|  | 2020 |
(In thousands) |  | Network Solutions |  |  | Services & Support |  |  | Total |
Subscriber Solutions |  | $ | 163,349 |  |  | $ | 15,315 |  |  | $ | 178,664 |
Access & Aggregation Solutions |  |  | 274,666 |  |  |  | 53,180 |  |  |  | 327,846 |
Optical Networking Solutions |  |  | — |  |  |  | — |  |  |  | — |
Total |  | $ | 438,015 |  |  | $ | 68,495 |  |  | $ | 506,510 |
Additional Information The following table presents revenue information by geographic area for the years ended December 31, 2022, 2021 and 2020:
(In thousands) |  | 2022 |  |  | 2021 |  |  | 2020 |
United States |  | $ | 517,433 |  |  | $ | 374,600 |  |  | $ | 352,079 |
United Kingdom |  |  | 189,685 |  |  |  | 56,355 |  |  |  | 13,799 |
Germany |  |  | 146,797 |  |  |  | 65,229 |  |  |  | 74,882 |
Other international |  |  | 171,621 |  |  |  | 66,820 |  |  |  | 65,750 |
Total |  | $ | 1,025,536 |  |  | $ | 563,004 |  |  | $ | 506,510 |
Customers comprising more than 10% of revenue can change from year to year. Single customers comprising more than 10% of revenue in 2022 included one customer, at 10.4%, which was a service provider and was included in both our Network Solutions and Services & Support segments. Single customers comprising more than 10% of revenue in 2021 included one customer at 18% and was included in both our Network Solutions and Services & Support segments. Single customers comprising more than 10% of revenue in 2020 included three customers at 15%, 12% and 10% and was included in both our Network Solutions and Services & Support segments. Other than those with more than 10% of revenue disclosed above our next five largest customers can change, and have historically changed, from year-to-year. Th e next five largest customers combined represent ed 33%, 38% and 34% of total revenue in 2022, 2021 and 2020, respectively. As of December 31, 2022, property, plant and equipment, net totaled $110.7 m illion, which included $56.2 million held in the U.S. and $54.5 million held outside the U.S. As of December 31, 2021, property, plant and equipm ent, net totaled $55.8 million, which included $53.0 million held in the U.S. and $2.8 million held outside the U.S. Property, plant and equipment, net is reported on a Company-wide, functional basis only.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-22 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-15 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 31 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-31 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-42 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-40 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//280/tableOfContent Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 26 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-26 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 34 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-34 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-41 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-21 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 21 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-21 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-32 + Details
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