Quick answer
1. Start with prepaid
Who makes this rule?
Prepaid avoids a long minimum term and may be easier before you have a regular German payment setup. Providers still set their own accepted identity documents, address details, payment methods and activation process. Check these conditions before buying a starter pack or eSIM.
Top-up methods and bundles differ. Compare the recurring bundle price, included data, automatic renewal and what happens when the allowance is used. A low starter price can become expensive if the tariff falls back to per-unit charging.
2. The identity check
Who makes this rule?
Before activating a prepaid mobile service, the provider must verify the user’s identity. The available method can include a shop, video identification, electronic-ID function or another provider-supported procedure. The accepted documents and languages vary.
Enter your name exactly as it appears on the identity document and use truthful address information. If one method fails, ask the provider which alternative verification route accepts your document rather than repeatedly changing personal data.
3. Networks and coverage
There are a few physical networks and many resellers using them. The reseller’s price differs but the coverage is the underlying network’s, so if reception matters where you live, check which network a cheap tariff actually runs on.
Coverage can vary by address, building, route and device. Use provider maps and the Bundesnetzagentur’s independent mobile monitoring information, then test reception during any withdrawal or trial window available for the product.
Official source
The regulator’s service for internet and mobile: contract problems, speed shortfalls and number porting.
Bundesnetzagentur
4. Before signing a contract
Who makes this rule?
Read the contract summary for the monthly price, one-off fees, minimum term, notice rules, data speed, roaming and any handset financing. Promotional prices may increase after an introductory period, and a phone bundled with the tariff can create a separate cost comparison.
Consumer rules provide protections around contract summaries, renewal and cancellation, but they do not make every tariff identical. Save the order confirmation and contract summary. For online orders, check whether a statutory withdrawal right applies and when its period starts.
5. Frequently asked questions
Number portability is generally available. Coordinate the timing and customer details with the new and old providers; the names and dates of birth normally need to match. Check the Bundesnetzagentur guidance if a provider rejects or delays the request.
Do not assume one nationwide provider rule. The identity check is mandatory, while accepted address evidence and delivery requirements depend on the provider, sales channel and product. Check before purchase if you have only a temporary address.
No. Compare total cost over the minimum term, including activation, handset, price increases and unused data. Prepaid can cost less for light or temporary use, while a contract may offer better value for some regular users.
Many tariffs include regulated EU roaming, but fair-use limits, special destinations and permanent roaming rules can apply. Check the provider’s current roaming price list before travel.
Official information
Rules and amounts change. Always verify current requirements using official sources.
Related guides
Amounts and legal requirements can change. We verify this information against official sources and show when each figure was last checked, but always confirm important requirements with the responsible authority before you apply.
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