BEST 4-WEEK VALUE
25 GB at €10/4w on Telekom network. Annualised €130/year — cheaper than Telekom's own M tier.
Why we picked it: Cheaper than Telekom Prepaid M (€9.95/4w for 20 GB) and gives you 5 GB more data. Same network underneath.
BEST ANNUAL
240 GB for the entire year at €100. Matches Telekom Jahrestarif for €0.05 less.
Why we picked it: Pay once. Pure D-Netz coverage. The simplest D-Netz prepaid option for a full year.
BEST FOR HEAVY USERS
45 GB at €12/4w. Most data per Euro in the 4-week tier on Telekom network.
Why we picked it: For users who need more than 25 GB but don't want to commit to a year upfront.
BEST FLEXIBLE
Build your own from €2/4w. Add minute, SMS, and data buckets independently.
Why we picked it: Right for users with unusual usage patterns (high SMS, low data, etc).
congstar has unusually wide retail availability for an MVNO. Sold at:
Activation requires identity verification (legal requirement); congstar uses VideoIdent or in-shop verification.
Yes. congstar is a wholly-owned Deutsche Telekom MVNO brand and uses the same Telekom cell sites with the same coverage footprint. Speeds are capped at 25 Mbit/s on prepaid (vs. up to 300 Mbit/s on Telekom-branded prepaid), but signal availability is identical.
Yes, slightly. congstar M is €10/4w for 25 GB, Telekom Prepaid M is €9.95/4w for 20 GB. congstar gives you 5 GB more data for 5 cents more. Over a year, congstar M annualises to €130 vs. Telekom M at €129.35.
EU roaming is included on all paid tiers. Switzerland data roaming appears in the fetched prepaid detail text for some congstar prepaid plans. Telekom prepaid bundles Switzerland more clearly; if Switzerland matters, verify on the specific tariff page before buying.
Yes. The prepaid pages confirm 5G/LTE access at up to 25 Mbit/s. The cap means you won't see 200+ Mbit/s peak speeds like Telekom-branded prepaid, but signal coverage and reliability are identical.