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June 26, 2018
T-Mobile – Sprint Merger
On April 29, 2018, T-Mobile US and Sprint Corporation 
decline is attributable to several factors. There is little 
announced a merger agreement that could change 
growth in the number of lines, as the vast majority of 
competitive conditions within the telecommunications 
potential users already have mobile phones. Many carriers’ 
industries. T-Mobile is valuing Sprint at approximately $59 
service plans no longer include two-year contracts in 
billion. The companies compete directly with one another 
conjunction with subsidized smartphones, so customers can 
in the mobile wireless voice and data services sectors for 
terminate service without penalty if a competing provider 
both residential and business customers. In addition, the 
offers lower service fees. Carriers have generally revised 
companies claim, the merger would enable them to compete 
their service plans to offer more data usage for the same 
directly with traditional in-home wireline broadband 
amount, or less, than previously. Also, the proliferation of 
services. 
public Wireless Fidelity (Wi-Fi) services has enabled 
mobile phone users to bypass their carriers’ mobile wireless 
The Two Companies 
networks, thereby limiting mobile carriers’ revenue. 
T-Mobile 
Figure 1. Service Revenues of Mobile Carriers 
T-Mobile is the third-largest wireless carrier in the United 
(dol ars in bil ions) 
States, serving about 72.6 million customers under the T-
Mobile and Metro PCS brands. It is controlled by Deutsche 
Telekom AG, which indirectly holds about 62% of T-
Mobile’s stock. Deutsche Telekom is based in Bonn, 
Germany, and provides fixed broadband and wireless 
services to customers in more than 50 countries. 
Sprint 
Sprint is the fourth-largest wireless carrier in the United 
States, serving approximately 54.6 million retail and 
wholesale wireless customers at the end of 2017 under its 
Sprint, Boost Mobile, Virgin Mobile, and Assurance 
Wireless brands. In addition, Sprint provides long-distance 
voice services to other telecommunications companies and 
 
select businesses over its landlines. Sprint also provides 
Source: FCC 19th and 20th Mobile Wireless Competition Reports, 
part of the backbone of the internet. As a Tier 1 internet 
citing data from UBS Investment Research. 
backbone provider, it can reach every other network on the 
Notes: Revenues not adjusted for inflation. The decline in the share 
internet without paying other companies to carry or transfer 
of “Others” reflects industry consolidation. 
data. Other Tier 1 internet backbone providers within the 
United States include AT&T, Verizon, and Century Link.  
Regulatory Review 
Before the companies may complete the merger, three 
Sprint is controlled by SoftBank Group Corp., which 
indirectly holds about 84% of Sprint’s stock. SoftBank is 
government entities must review it: (1) the FCC, (2) the 
U.S. Department of Justice (DOJ), and (3) the Committee 
based in Tokyo, Japan, and provides mobile and fixed-line 
on Foreign Investment in the United States (CFIUS). 
services in Japan. If the transaction is completed, Softbank 
would join Deutsche Telekom as a major holder of T-
Mobile’s shares.
The FCC evaluates whether the transaction would be in the 
 
public interest, pursuant to sections 214(a) and 310(d) of 
Consumer and Industry Trends 
the 1934 Communications Act, as amended. The FCC may 
approve the merger without conditions, approve the merger 
Four national carriers handle almost all mobile wireless 
with conditions, or designate the merger for a hearing by an 
traffic in the United States: AT&T Inc.; Verizon 
FCC administrative law judge.  
Communications Inc.; T-Mobile; and Sprint. The Federal 
Communications Commission (FCC) estimates that these 
four carriers accounted for about 98% of the nation’s 
DOJ reviews the transaction to determine whether it would 
substantially reduce competition, as prohibited by Section 7 
mobile wireless service revenue in 2016. 
of the Clayton Antitrust Act of 1914. DOJ may allow the 
deal to go forward unchallenged, enter into a negotiated 
Mobile wireless companies generate revenue from selling 
consent agreement with the companies, or seek to stop the 
mobile and data services and equipment, such as mobile 
transaction by filing for a preliminary injunction in federal 
phones and tablets. As Figure 1 illustrates, U.S. mobile 
court. 
wireless service revenues peaked in 2014. The revenue 
https://crsreports.congress.gov 
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CFIUS is an interagency committee that reviews foreign 
distinct from the telecommunications market as defined in 
investments in the United States to determine whether they 
some other way, then they would assess the merger’s 
threaten to impair national security or would result in 
competitive impact, in part, by measuring the concentration 
foreign control of critical infrastructure that could impair 
of the industry before and after the merger. 
national security. The President may block foreign 
investment transactions that threaten to impair national 
Antitrust authorities often use the Herfindahl-Hirschman 
security. Alternatively, CFIUS may clear a transaction 
Index (HHI) to measure how a merger could affect market 
subject to conditions designed to mitigate the perceived 
structure. The HHI is calculated by squaring the market 
risks to U.S. national security the transaction otherwise 
share of each firm competing in the product market and 
would pose, or may take no action and thereby allow a 
then summing the resulting numbers. This formula gives 
transaction to proceed as proposed.  
proportionately greater weight to larger market shares. For 
communications companies, market shares can be measured 
Potential Issues for Regulatory Review 
by revenue or number of subscribers. 
Within the last 10 years, T-Mobile has twice considered 
merging with another mobile wireless carrier. Each time, 
Based on 2016 revenue data described in Figure 1, the HHI 
regulators indicated that they would seek to prevent the 
of the mobile wireless industry was 2845 points. Post-
transaction out of concern that it would reduce competition.  
merger, the HHI would be 3256. Thus, the increase would 
be 410 points. According to the 2010 merger guidelines 
In 2011, after AT&T announced its intention to acquire T-
published by DOJ and the Federal Trade Commission, 
Mobile from Deutsche Telekom, DOJ announced that it 
markets with HHIs above 2500 are highly concentrated, and 
intended to seek to block the acquisition. In a press release, 
mergers in highly concentrated markets that involve an 
DOJ stated that the proposed acquisition would 
increase of more than 200 points will be presumed to be 
substantially lessen competition for mobile wireless 
likely to enhance market power. Thus, if DOJ were to 
communications in the United States. AT&T ended the 
define mobile wireless as a separate market, it would likely 
takeover attempt and paid Deutsche Telekom a break-up fee 
presume that the proposed merger would give AT&T and 
that included $3 billion in cash and spectrum valued at 
Verizon as well as the merged T-Mobile-Sprint greater 
about $1 billion. The fee enabled T-Mobile to offer 
pricing power. The parties may rebut DOJ’s presumption 
innovative features at lower prices and thereby gain market 
by providing persuasive evidence that demonstrates the 
share. 
contrary. 
More recently, Sprint and T-Mobile abandoned merger 
Competitive Impact on Pre-Paid Customers. Wireless 
discussions in 2014 after the FCC and DOJ suggested that 
carriers serve two types of retail customers: postpaid and 
the combination of the nation’s third- and fourth-largest 
prepaid. Postpaid customers are billed monthly, after 
mobile wireless carriers could lead to higher prices and 
service has been provided. Prepaid customers pay in 
fewer choices, particularly for consumers who are not able 
advance of receiving services. Prepaid subscribers may lack 
or willing to spend large amounts of money. 
the credit background or income necessary to qualify for 
postpaid services. Based on the data in Table 1, the HHI of 
Defining the Relevant Product/Service Market. Since 
the prepaid subscriber mobile wireless submarket is 
those earlier merger efforts were blocked, the 
currently 2686. Post-merger, the HHI would be 3902, with 
telecommunications market has undergone significant 
a change of 1216. Under the merger guidelines, DOJ would 
change. As part of their reviews, the agencies must examine 
presume the merger would likely enhance carriers’ market 
the businesses of T-Mobile and Sprint both in terms of what 
power in this segment of the market. 
they sell (a product/service dimension), and where they sell 
it (a geographic dimension). The companies have stated that 
Table 1. Carrier Market Shares by Subscriber Type 
they are increasingly competing with other service 
As of March 31, 2018 
providers as wireless, cable, satellite, and content-related 
services converge. Regulators will need to determine 
 
Postpaid Subscribers 
Prepaid Subscribers 
whether the relevant market for analysis is mobile wireless 
T-Mobile 
14% 
38% 
service only, or whether the convergence of previously 
separate telecommunications services requires them to 
Sprint 
11% 
16% 
define the market in a different way.  
AT&T 
27% 
29% 
For example, since 2017 AT&T has expanded by acquiring 
Verizon 
39% 
9% 
DIRECTV, a satellite video subscriptions service, and Time 
Warner Inc., which owns cable networks, a television 
Others 
8% 
8% 
studio, and a movie studio. AT&T has launched WatchTV, 
Total  
283 mil ion 
55 mil ion 
an online subscription video service, as a perk for 
consumers who purchase certain wireless plans. Neither T-
Source:  CRS analysis of data from S&P Global Market Intelligence 
Mobile nor Sprint currently offers a proprietary video 
and company documents for 1Q2018.  
subscription service. 
Dana A. Scherer, Specialist in Telecommunications Policy   
Market Concentration in Mobile Wireless Segment. If 
regulators determine that the mobile wireless market is 
IF10915
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T-Mobile – Sprint Merger 
 
 
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