German Telecom Market 2025: DSL Decline and Fiber Optic Growth (heise.de)

• DSL market share dropped from 61.1% to 58.5%; fiber reached 16.5% (6.4 million connections).
• Data usage per fixed-line connection: 376 GB/month (+54 GB); mobile: 8.4 GB/month.
• Messaging services dominate with 913.5 billion messages; SMS and voice calls decline sharply.

"Germany's Federal Network Agency reports a significant decline in DSL connections in favor of fiber optics in 2025. Data consumption averaged 376 GB per fixed-line connection per month. Messaging services are replacing traditional telephony and SMS."