About Bundesnetzagentur (BNetzA)

Bundesnetzagentur ("Federal Network Agency"), abbreviated BNetzA, is the German federal regulator with oversight of telecommunications, electricity, gas, post, and rail networks. Headquartered in Bonn, it was founded in 1998 as the Regulierungsbehörde für Telekommunikation und Post (RegTP) and renamed Bundesnetzagentur in 2005.

For consumer mobile, BNetzA's most-cited rules are:

• EUR 6.82 maximum porting fee: the new provider can charge this once when you port your number
• 25-minute maximum service interruption during the port-day cutover
• 7 working days maximum end-to-end porting timeline
• Mandatory porting right: providers cannot refuse a portable number

The agency also publishes the authoritative mobile network coverage map for Germany at breitband-monitor.de, which is the canonical source for which networks reach which postcodes. Independent network tests like connect Netztest complement BNetzA's coverage data with quality scoring.