Best Allnet Flat 2026

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Last Updated - 22.07.2026

Best Choice

01

Deutsche Telekom

Telekom MagentaMobil Prepaid Annual Plan 240 GB (20 GB/Month) | 5G/LTE Max & Allnet Flat in all German Networks | Continue to Use Unused Data Volume | EU Roaming & Hotspot Flat | 100 EUR Start Credit

12% Off

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Unbeatably independent: with the prepaid SIM card without contract binding, stay flexible with full cost control. The triple SIM can be used with Standard, Micro & Nano formats. (Not for smartwatches, kidswatches.)
Starting credit and other options: charge online, via the MeinMagenta app or via charging code. Optionally, additional data volume can be booked. With your prepaid card, you will receive 10 € starting credit.
Ready to go: This prepaid card is activated with a new phone number – ideal for anyone who wants to get started directly and without waiting time. A phone number is not provided with this product.
PERMANENTLY MORE DATENVOLUMEN AND AT THE SAME PRICE. Monthly 20 GB high-speed volume - always at maximum available speed and best network coverage (LTE Max/5G). The prepaid annual plan contains unlimited calls and texts in the Telekom mobile network and in all other German networks.
NEW ROAMING CONDITIONS INCLUDED: With EU-Basic Roaming, making calls and surfing abroad is now even easier. And even cheaper. Use your included volume for temporary stays in the EU, UK and Switzerland at no extra cost.
NEW AND SIMPLY FAIR: Because unused data volume is automatically taken into the next billing cycle and consumed fairly first. Simplified roaming at better conditions and a higher SSD speed of incredible 64 kbps make MagentaMobil prepaid rates even more attractive.

87,95 € 99,95 €(12% Off off)
02

T-Mobile

30 GB AT&T Network USA 30 Days Valid Allnet Flat also to Germany from Power SIM Shop

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Please check before purchase whether your mobile phone is suitable for AT&T network.
From iPhone11 and later or Google Pixel 9 and 10 are suitable.
For all other Samsung mobile phones, please ask us with the IMEI number before purchasing. Xiaomi, Huawei, Sony and other China mobile phones do not work in AT&T network.
Allnet Flat within the USA and to Germany and the EU.
30GB in USA

33,00 €
03

Deutsche Telekom

Telekom MagentaMobil Prepaid L with 40 GB High-Speed Volume | 5G/LTE Max & Allnet Flat in all German Networks | Continue to Use Unused Data Volume | EU Roaming & Hotspot Flat | 15 EUR Starting Credit

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Unbeatably independent: with the prepaid SIM card without contract binding, stay flexible with full cost control. The triple SIM can be used with Standard, Micro & Nano formats. (Not for smartwatches, kidswatches.)
Starting credit and other options: charge online, via the MeinMagenta app or via charging code. Optionally, additional data volume can be booked. With your prepaid card, you will receive 10 € starting credit.
Ready to go: This prepaid card is activated with a new phone number – ideal for anyone who wants to get started directly and without waiting time. A phone number is not provided with this product.
PERMANENTLY MORE DATENVOLUMEN AND AT THE SAME PRICE. 40 GB high-speed volume - always at maximum available speed and best network coverage (LTE Max/5G). The prepaid tariff L contains unlimited calls and texts in the Telekom mobile network and in all other German networks.
NEW ROAMING CONDITIONS INCLUDED: With EU-Basic Roaming, making calls and surfing abroad is now even easier. And even cheaper. Use your included volume for temporary stays in the EU, UK and Switzerland at no extra cost.
NEW AND SIMPLY FAIR: Because unused data volume is automatically taken into the next billing cycle and consumed fairly first. Simplified roaming at better conditions and a higher SSD speed of incredible 64 kbps make MagentaMobil prepaid rates even more attractive.

13,96 €
04

Deutsche Telekom

Telekom MagentaMobil Prepaid M with 20 GB High-Speed Volume | 5G/LTE Max & Allnet Flat in all German Networks | Continue to Use Unused Data Volume | EU Roaming & Hotspot Flat | 10 EUR Start Credit

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Unbeatably independent: with the prepaid SIM card without contract binding, stay flexible with full cost control. The triple SIM can be used with Standard, Micro & Nano formats. (Not for smartwatches, kidswatches.)
Starting credit and other options: charge online, via the MeinMagenta app or via charging code. Optionally, additional data volume can be booked. With your prepaid card, you will receive 10 € starting credit.
Ready to go: This prepaid card is activated with a new phone number – ideal for anyone who wants to get started directly and without waiting time. A phone number is not provided with this product.
PERMANENTLY MORE DATENVOLUMEN AND AT THE SAME PRICE. 20 GB high-speed volume - always at maximum available speed and best network coverage (LTE Max/5G). The prepaid tariff M contains unlimited calls and texts in the Telekom mobile network and in all other German networks.
NEW ROAMING CONDITIONS INCLUDED: With EU-Basic Roaming, making calls and surfing abroad is now even easier. And even cheaper. Use your included volume for temporary stays in the EU, UK and Switzerland at no extra cost.
NEW AND SIMPLY FAIR: Because unused data volume is automatically taken into the next billing cycle and consumed fairly first. Simplified roaming at better conditions and a higher SSD speed of incredible 64 kbps make MagentaMobil prepaid rates even more attractive.

7,99 €
Value for Money

05

Vodafone

Vodafone Prepaid CallYa M | 50 GB | 15 EUR Credit | Without Contract | 5G | Allnet Flat | EU Roaming | Can be Used Worldwide

90% Off

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Note on packaging: the packaging may contain even older fare information. The currently offered Vodafone CallYa tariff always applies in this product description. The regular tariff overview can be found at: vod.af/German.
NO CONTRACT: A flexible prepaid plan with full cost control. Cancel anytime.
MORE DATA VOLUME: Get 50 GB in the CallYa M tariff for EUR 14.99 per month when registered
EU ROAMING INCLUDED: You can also use the prepaid inclusive services for temporary stays abroad in the EU and in the UK. For calls and SMS from Germany to the EU, you will receive 500 min/SMS.
Convenient charging options: You can top up your credit online, in the MeinVodafone app, via credit card, balance transfer or by bank transfer.
Can be used worldwide: with Vodafone CallYa you can stay mobile outside the EU in over 200 countries. For many popular travel countries, data roaming packages can be booked – including pricing information via SMS and automatic cost control.
ALLNET FLAT: making calls and phoning in all German networks included.
5G INCLUDED: Surf the excellent 5G network with up to 300 Mbps. High speed in D-mesh quality.
15 Euro starting credit: You will receive 15 EUR starting credit with this SIM card. IMPORTANT: After SIM activation, the base price of EUR 14.99 for the first 4 weeks will be debited from the existing starting balance.

1,00 € 9,99 €(90% Off off)
06

Lebara

LEBARA Hello! 65 Prepaid SIM Card | Mobile Phone Tariff without Contract | 65 GB Including 5G | Allnet Flat | 300 Minutes Abroad

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Quickly activated: Register the SIM card in just a few minutes online or via app and get started right away – without paperwork.
Prime Days: Save 44% - 65GB for just €8.39 instead of €14.99 every 4 weeks. Secure now!
Important to know: activation and first use of the prepaid SIM card must be done in Germany.
INTERNATIONALLY CONNECTED: 300 free minutes in over 50 countries – ideal for reaching family and friends worldwide cheap – including Poland, Romania, USA, Croatia or Turkey (landline).
Full control, no contract: The prepaid card without contract, no hidden costs – you stay flexible at all times and pay only what you use.
FAST 5G INTERNET: 65 GB of high-speed data in the powerful Telefónica network – reliable, stable and with strong network coverage even on the go.
EU ROAMING INCLUDED: Use your data volume and flat even abroad in the EU at no additional cost – ideal for travel & holidays.
ALLNET FLAT GERMANY: Make calls & text messages to all German networks with your new prepaid plan – as much as you want, at no additional cost.

14,99 €
07

Lebara

LEBARA Prepaid SIM Card with Hello! 30 Prepaid Tariff without Contract | 30 GB Data Volume Including 5G | Allnet Flat | 100 Minutes Abroad

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Quickly activated: Register the SIM card in just a few minutes online or via app and get started right away – without paperwork.
Prime Days Deal: 30 GB for only €6.99 instead of €9.99 every 4 weeks – now get full data power!
Important to know: activation and first use of the prepaid SIM card must be done in Germany.
INTERNATIONALLY CONNECTED: 100 free minutes in over 50 countries – ideal for reaching family & friends worldwide cheap – including Poland, Romania, USA, Croatia or Turkey (landline).
Full control, no contract: The prepaid card without contract, no hidden costs – you stay flexible at all times and pay only what you use.
FAST 5G INTERNET: 30 GB of high-speed data in the powerful Telefónica network – reliable, stable and with strong network coverage even on the go.
EU ROAMING INCLUDED: Use your data volume and flat even abroad in the EU at no additional cost – ideal for travel & holidays.
ALLNET FLAT GERMANY: Make calls & text messages to all German networks with your new prepaid plan – as much as you want, at no additional cost.

9,99 €
08

crash

Crash Allnet Flat S with 2 GB Internet Flat Max. 21.6 Mbps, Telephony and SMS Flat in all German Networks, EU Flat, 24 Months Term, 9.99 EUR Monthly

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The activation of the contract must be done within 4 weeks of purchase.
Telephony flat rate and SMS flat rate in all German Networks (excluding service and special phone numbers) / best D-network quality
Package includes: product information. You will receive the activation code by email
Mobile phone plan for your mobile phone for 9.99 EUR monthly with a term of 24 months, from 25 Month 19.99 EUR monthly
EU roaming: use the contract abroad in the EU as in Germany. Telephony from EU countries to all German Networks, as well as phone numbers with the dialling code of the visited EU country included. No connection fee
2 GB internet flat with max. 21.6 Mbps (throttling after 2 GB, no automatic data and therefore no additional costs)

19,99 €
09

congstar

congstar Prepaid ALLNET XL – 55 GB in D-Network with 5G (25 Mbps), 16€ Start Credit, Phone & SMS Flat in all German Networks, EU Roaming Included, 1 GB Mtl. mehr Every Year, without Contract.

50% Off

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

ROAM LIKE AT HOME: making calls, texts and Internet access within the EU are included with EU roaming including to Switzerland.
PREPAID WITHOUT CONTRACT TIME: Enjoy your own prepaid plan in the best D-net quality. Your fare options are always valid for 4 weeks or 24 hours from activation of your card. Easy to view via app or online. No minimum runtime. No basic fee. Can be cancelled daily.
Let's go in 3 – 2 – 1: Your delivery includes an inactive congstar prepaid card, your new phone number (information on taking phone numbers can be found under "Important Information") + PUK and activation instructions. Visit the congstar activation page, enter your data there and have an ID document ready for legitimation
For many surfers – Allnet XL: With 16 € starting credit, the first 4 weeks of your term are already clarified. Make calls and SMS in the Allnet Flat in all German networks. Your data volume of 55 GB is on top. Bookable data passes and speed options make your prepaid package even more personal. **
5G data turbo included: for the best possible data transmission, 5G (with max. 25 Mbps) already included in your prepaid plan.
3-in-1 SIM card: mini SIM, micro SIM and nano SIM: your congstar prepaid SIM card contains three formats and fits in any smartphone and device.

4,99 € 9,99 €(50% Off off)
10

Lebara

LEBARA Mobile Phone Tariff Hello! 20 | 20 GB Data Volume | 5G | Allnet Flat | 50 Minutes Abroad | Includes SIM Card

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

► TOP DEAL - HELLO! 20 with 20 GB data volume, only 4.99 €/month, 5G network with up to 50 Mbps, Allnet flat for telephony & SMS, EU roaming & 50 minutes abroad.
► IMPORTANT NOTE: The price of €1.99 refers to the code only!
► Exclusive: order SIM card, redeem code and save. So you only pay €1 instead of €4.99 on the base fee of your 24-month mobile phone plan in the first month. You also save on the activation fee.

1,99 €