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Customer development

Customer development – Germany

thousands

 

 

 

 

 

 

Dec. 31, 2025

Dec. 31, 2024

Change

Change
%

Dec. 31, 2023

Mobile customers

74,490

68,553

5,936

8.7

61,419

Contract customers

27,740

26,532

1,208

4.6

25,171

Prepaid customers (incl. M2M)

46,750

42,021

4,728

11.3

36,248

Fixed-network lines

16,796

17,155

(359)

(2.1)

17,342

Retail broadband lines

15,103

15,152

(49)

(0.3)

15,018

Of which: optical fibera

13,370

13,213

157

1.2

12,893

Television (IPTV, satellite)

4,747

4,638

109

2.4

4,327

Wholesale lines

10,077

10,474

(396)

(3.8)

10,834

Wholesale broadband lines

8,536

8,587

(51)

(0.6)

8,307

Of which: optical fibera

7,617

7,602

16

0.2

7,307

Unbundled local loop lines (ULLs)

1,541

1,887

(346)

(18.3)

2,527

a

Disclosure of the total of all fiber-optic lines (FTTx).

Total

In Germany, we continue to be market leader both in terms of fixed-network and mobile revenues. This success is attributable to our high-performance networks, a broad product portfolio, and good service. We want to offer our customers a seamless and technology-neutral telecommunications experience. We regularly adapt our product portfolio to address the needs of our customers.

Mobile communications

Our Germany operating segment had a total of 74.5 million mobile customers as of December 31, 2025. The number of high-value mobile contract customers under the Telekom and congstar brands grew by 1.1 million customers overall against December 31, 2024. Sustained high demand for mobile rate plans with data volumes continues to drive this trend. The prepaid customer base grew by 11.3 % against the end of 2024, driven mainly by the M2M SIM cards used in the automotive industry.

Fixed network

The total number of fiber-optic-based lines was 21.0 million at the end of 2025, reflecting sustained demand for higher bandwidths. The number of retail broadband lines remained more or less stable against the end of 2024 at a total of 15.1 million customers. Around 55 % of the customers have subscribed to a rate plan with speeds of 100 Mbit/s or higher. The rise in demand for our TV content drove growth in our TV customer base of 109 thousand against year-end 2024, an increase of 2.4 %. The number of fixed-network lines decreased by 2.1 % to 16.8 million lines on account of the decline in the voice product.

Wholesale

The number of wholesale lines declined overall as of December 31, 2025. This trend results partly from consumers switching to other providers and partly from our wholesale partners migrating their retail customers to their own infrastructures. Fiber-optic-based wholesale broadband lines accounted for 75.6 % of all lines – an increase of 3.0 percentage points against the end of 2024.

Development of operations

Development of operations – Germany

millions of €

 

 

 

 

 

 

 

 

2025

2024

Change

Change
%

2023

Revenue

 

25,610

25,711

(101)

(0.4)

25,187

Consumers

 

12,953

13,174

(221)

(1.7)

12,640

Business Customersa

 

8,739

8,727

12

0.1

9,258

Wholesalea

 

3,249

3,249

0

0.0

2,688

Other

 

668

561

107

19.1

602

Service revenue

 

22,710

22,480

231

1.0

22,096

EBITDA

 

10,887

10,082

806

8.0

10,294

Special factors affecting EBITDA

 

(466)

(1,056)

591

55.9

(501)

EBITDA (adjusted for special factors)

 

11,353

11,138

215

1.9

10,794

EBITDA AL

 

10,228

9,459

769

8.1

9,737

Special factors affecting EBITDA AL

 

(466)

(1,056)

591

55.9

(501)

EBITDA AL (adjusted for special factors)

 

10,694

10,516

178

1.7

10,238

EBITDA AL margin (adjusted for special factors)

%

41.8

40.9

 

 

40.6

Depreciation, amortization and impairment losses

 

(4,486)

(4,384)

(102)

(2.3)

(4,220)

Profit (loss) from operations (EBIT)

 

6,401

5,698

704

12.4

6,073

EBIT margin

%

25.0

22.2

 

 

24.1

Cash capex

 

(4,870)

(4,782)

(88)

(1.8)

(4,587)

Cash capex (before spectrum investment)

 

(4,870)

(4,782)

(88)

(1.8)

(4,587)

a

Since January 1, 2024, certain revenues which were previously assigned to Business Customers have been recognized under Wholesale. The 2023 figures were not adjusted retrospectively.

Revenue, service revenue

Total revenue in our Germany operating segment decreased in the reporting year by 0.4 % year-on-year to EUR 25.6 billion, mainly due to lower mobile terminal equipment revenues. By contrast, service revenues grew by 1.0 % year-on-year, due to growth in the mobile and fixed-network businesses, largely driven by broadband and TV business.

Revenue from Consumers declined by 1.7 % against the prior year due to lower mobile terminal equipment revenues. The fixed-network business continued to perform well, characterized by sustained broadband revenue growth driven by a number of positive factors, including customer appreciation for reliable networks and high bandwidths as well as our TV offerings. This development more than offset the decline in voice components. Mobile service revenues also trended positively, in line with customer development.

Revenue from Business Customers remained at the same level as in the prior year. The fixed-network business remained below the prior-year level, mainly due to declines in voice business and call charges, while the mobile business developed positively.

Wholesale revenue remained stable year-on-year in the reporting year at EUR 3.2 billion.

Adjusted EBITDA AL, EBITDA AL

Adjusted EBITDA AL increased by EUR 0.2 billion or 1.7 % year-on-year. The main reasons for this increase are high-value service revenue growth and enhanced cost efficiency, primarily as a result of the lower headcount and the ongoing implementation of efficiency enhancement and digitalization measures. Various one-time effects came into play. Our adjusted EBITDA AL margin amounted to 41.8 %.

At EUR 10.2 billion, EBITDA AL increased by 8.1 % against the prior-year level, due to the effects described under adjusted EBITDA AL and lower year-on-year expenses arising from special factors. The prior year had included special factors of EUR 1.1 billion, primarily in connection with the forgone contingent consideration receivable from IFM Global Infrastructure Fund, and increased socially responsible staff restructuring measures. Special factors in the reporting year amounted to EUR 0.5 billion, and likewise mainly related to socially responsible staff restructuring measures.

Profit/loss from operations (EBIT)

Profit from operations amounted to EUR 6.4 billion, an increase of 12.4 % against the prior year. This was mainly due to the positive development of EBITDA, which in the prior year had included the negative effect of higher special factors as described above. This was offset by an increase of 2.3 % in depreciation, amortization and impairment losses, mainly resulting from rising fiber build-out volumes.

Cash capex (before spectrum investment), cash capex

Cash capex (before spectrum investment) increased by EUR 88 million, or 1.8 %, compared with the prior year. Capital expenditure totaled EUR 4.9 billion in the reporting year, with much of this figure going towards the build-out of our fiber-optic network. The number of homes passed by our fiber-optic network had increased to 12.6 million by December 31, 2025. In mobile communications, 99.0 % of German households can already use 5G.

5G
Refers to the mobile communications standard launched in 2020, which offers data rates in the gigabit range, mainly over the 3.6 GHz and 2.1 GHz bands, converges fixed-network and mobile communications, and supports the Internet of Things.
Glossary
AL – After Leases
Since the start of the 2019 financial year, Deutsche Telekom has taken the effects of the first-time application of IFRS 16 “Leases” into account when determining financial performance indicators. “EBITDA after leases” (EBITDA AL) is calculated by adjusting EBITDA for depreciation of the right-of-use assets and for interest expenses on recognized lease liabilities. When determining “free cash flow after leases” (free cash flow AL), free cash flow is adjusted for the repayment of lease liabilities.
Glossary
Fixed-network lines
In the combined management report, these include lines in operation, excluding internal use and public telecommunications, including IP-based lines. The totals and the changes in percent were calculated on the basis of precise figures and rounded to millions or thousands.
Glossary
M2M – Machine to Machine
M2M refers to communication between machines. The information is automatically sent to the recipient. For example, in an emergency, alarm systems automatically send a signal to security or the police.
Glossary
Mobile customers
In the combined management report, one mobile communications card corresponds to one customer (see also SIM card). The totals and the changes in percent were calculated on the basis of precise figures and rounded to millions or thousands.
Glossary
Prepaid
In contrast to postpaid contracts, prepaid communication services are services for which credit has been purchased in advance with no fixed-term contractual obligations.
Glossary
Retail
The sale of goods and services to end users. By contrast, the business with wholesale services for other telecommunications companies is referred to as wholesale business.
Glossary
SIM card – Subscriber Identification Module card
A SIM card is a chip card that is inserted into a cell phone to identify it in the mobile network. Deutsche Telekom counts its customers by the number of SIM cards activated and not churned. Customer totals also include the SIM cards with which machines can communicate automatically with one another (M2M cards). The churn rate is determined and reported based on the local market.
Glossary
Wholesale
Refers to the business of selling services to telecommunications companies which sell them to their own retail customers either directly or after further processing.
Glossary

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