Products and Services Revenue

We are an integrated communications company engaged primarily in providing an array of communications services, including local voice, broadband, private line (including business data services), Ethernet, network access, information technology and other ancillary services. We strive to maintain our customer relationships by, among other things, bundling our service offerings to provide our customers with a complete offering of integrated communications services.

We categorize our products, services and revenue among the following six categories:


•	IP and Data Services, which include primarily VPN data networks, Ethernet, IP and other ancillary services;


•	Transport and Infrastructure, which include broadband, private line (including business data services) and other ancillary services;


•	Voice and Collaboration, which includes primarily local voice, including wholesale voice, and other ancillary services;


•	IT and Managed Services, which include information technology services and managed services, which may be purchased in conjunction with our other network services;

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Regulatory Revenue, which consist of Universal Service Fund ("USF") and Connect America Fund ("CAF") support payments and other operating revenue. We receive federal support payments from both federal and state USF programs and from the federal CAF program. These support payments are government subsidies designed to reimburse us for various costs related to certain telecommunications services including the costs of deploying, maintaining and operating voice and broadband infrastructure in high-cost rural areas where we are not able to fully recover our costs from our customers; and


•	Affiliate services, we provide to our affiliates, telecommunication services that we also provide to external customers. In addition, we provide to our affiliates computer system development and support services, network support and technical services.

From time to time, we may change the categorization of our products and services.

Our operating revenue for our products and services consisted of the following categories for the years ended December 31, 2018, 2017 and 2016:



	Years Ended December 31,
	2018		2017	2016
	(Dollars in millions)
IP and Data Services	$	616	634	667
Transport and Infrastructure	2,926		3,006	3,109
Voice and Collaboration	1,800		1,980	2,252
IT and Managed Services	6		—	2
Regulatory Services	210		211	217
Affiliate Services	2,935		2,719	2,663
Total operating revenue	$	8,493	8,550	8,910

We do not have any single external customer that provides more than 10% of our total consolidated operating revenue. Substantially all of our consolidated revenue comes from customers located in the United States.

We recognize revenue in our consolidated statements of operations for certain USF surcharges and transaction taxes that we bill to our customers. Our consolidated statements of operations also reflect the offsetting expense for the amounts we remit to the government agencies. The total amount of such surcharges and transaction taxes that we included in revenue aggregated to $124 million, $134 million and $149 million for the years ended December 31, 2018, 2017 and 2016, respectively. These USF surcharges are assigned to the products and services categories based on the underlying revenue. We also act as a collection agent for certain other USF and transaction taxes that we are required by government agencies to bill our customers, for which we do not record any revenue or expense because we only act as a pass-through agent.

Our operations are integrated into and reported as part of the consolidated segment data of CenturyLink. CenturyLink's chief operating decision maker ("CODM") is our CODM, but reviews our financial information on an aggregate basis only in connection with our quarterly and annual reports that we file with the Securities and Exchange Commission. Consequently, we do not provide our discrete financial information to the CODM on a regular basis. As such, we believe we have one reportable segment.