Get Data in Greece Without an AFM Number | Tourist eSIM Guide
Landing in Greece? Local SIMs demand an AFM tax number. Skip the bureaucracy and airport rejection. Get a tourist eSIM instantly—no AFM, no paperwork.
Charlotte Davies, Head of Business Travel & Lifestyle Connectivity
(Updated: 16 February 2026)
23 min read
Planning a trip to Greece, the land of ancient wonders and breathtaking islands? Staying connected is crucial for navigation, sharing experiences, and essential communication. However, many tourists encounter a hurdle when trying to purchase a local SIM card: the requirement for an AFM (Arithmos Forologikou Mitroou), a Greek tax identification number. This guide explores why the AFM is a problem for visitors and presents the most convenient solution for instant, hassle-free data in Greece: a Cellesim eSIM.
Quick Navigation
The AFM Dilemma: Why Tourists Struggle with Greek SIM Cards
eSIMs: Your Key to Instant Data in Greece (No AFM Required)
Choosing Your Cellesim Greece eSIM Plan
Activating Your Greece eSIM: A Step-by-Step Guide
Navigating Greek Networks: Coverage and Speed with eSIM
Cost Comparison: eSIM vs. Traditional Options in Greece
Smart Connectivity Tips for Your Greek Holiday
Frequently Asked Questions
Greece eSIM Plans from $4.50
Skip the airport SIM queue and the AFM hassle. Join 50,000+ travelers who connect instantly with Cellesim.
The AFM Dilemma: Why Tourists Struggle with Greek SIM Cards | Cellesim eSIM
The AFM Dilemma: Why Tourists Struggle with Greek SIM Cards
When you arrive in Greece and wish to purchase a local physical SIM card from a major provider like Cosmote, Vodafone, or Nova, you'll quickly encounter a specific bureaucratic requirement: the AFM. The AFM, or Arithmos Forologikou Mitroou, is a unique nine-digit tax identification number issued by the Greek tax authorities. It is mandatory for various transactions in Greece, including opening a bank account, renting property long-term, and, crucially, registering a prepaid local SIM card.
For a short-term tourist, obtaining an AFM is an unnecessary and time-consuming process. It typically involves visiting a Public Revenue Office (DOY), presenting a passport, and filling out forms. This can take several hours, if not days, away from your valuable vacation time, and often requires a basic understanding of Greek or the assistance of a local. Many tourists find this requirement frustrating and an unexpected barrier to simple connectivity.
The AFM requirement for local SIM cards effectively discourages short-term visitors from easily accessing affordable domestic mobile data, pushing them towards less optimal solutions.
While some smaller, independent shops might offer "unregistered" SIM cards, these are often illegal or come with significant risks, including unreliable service, sudden deactivation, or inflated prices. Relying on such options is not recommended for a seamless travel experience.
Key Info: The AFM (Arithmos Forologikou Mitroou) is a Greek tax identification number required to register a local physical SIM card. Tourists typically do not have or need an AFM.
eSIMs: Your Key to Instant Data in Greece (No AFM Required)
This is where eSIM technology emerges as the ideal solution for travelers to Greece. An eSIM, or embedded SIM, is a digital SIM card that is pre-installed in your compatible smartphone or device. Instead of swapping physical plastic cards, you simply download an eSIM profile digitally.
The primary advantage of a Cellesim eSIM for your Greek holiday is the complete bypass of the AFM requirement. Since Cellesim operates as an international provider, our eSIMs are registered under our corporate entity, not your individual traveler profile. This means you do not need any local Greek documentation, including an AFM number, to activate and use your data plan.
Activating a Cellesim eSIM for Greece is straightforward. You purchase a plan online before your trip, receive a QR code via email, and scan it with your device. Within minutes, you are connected to a local Greek network, ready to use data as soon as you land. This eliminates queues at airport kiosks, language barriers, and bureaucratic hurdles, allowing you more time to explore Athens, relax on Santorini, or discover the historical sites of Crete.
Beyond avoiding the AFM, eSIMs offer several other benefits:
Instant Activation: Purchase and activate your plan from anywhere, at any time.
Keep Your Primary SIM: Your physical SIM slot remains free, allowing you to keep your home number active for calls and texts while using the eSIM for data.
Flexibility: Easily switch between eSIM profiles or top up your data plan as needed.
Environmental: No plastic waste from physical SIM cards.
Pro Tip: Ensure your smartphone is eSIM compatible before purchasing a plan. Most modern devices from Apple, Samsung, Google, and others support eSIM functionality. You can check your device's compatibility using our eSIM checker tool.
Choosing Your Cellesim Greece eSIM Plan
Cellesim offers a range of flexible eSIM data plans designed to suit various travel durations and data needs in Greece. Our plans ensure you have reliable internet access whether you are island hopping, exploring ancient ruins, or navigating city streets.
When selecting a plan, consider the following:
Duration of Stay: Plans typically range from 7 days to 30 days, aligning with most tourist itineraries.
Data Usage: How much internet do you anticipate using? If you'll be streaming, frequently video calling, or tethering other devices, a higher data allowance (e.g., 10 GB or 20 GB) might be appropriate. For light browsing, maps, and messaging, a smaller plan (e.g., 3 GB or 5 GB) could suffice. Our Smart Data Calculator can help estimate your needs.
Budget: Cellesim plans offer competitive rates, often proving more cost-effective than international roaming charges from your home provider.
Each Cellesim Greece eSIM plan provides access to robust 4G/LTE networks, ensuring fast and reliable connectivity across the country. You simply choose the data package and validity period that aligns with your travel plans, make a secure online purchase, and receive your eSIM QR code almost instantly.
You can browse specific options on our dedicated Greece eSIM page. We aim to provide clear, upfront pricing without hidden fees, giving you peace of mind before you even depart.
Activating Your Greece eSIM: A Step-by-Step Guide | Cellesim eSIM
Activating Your Greece eSIM: A Step-by-Step Guide
Activating your Cellesim eSIM for Greece is a quick and straightforward process. Follow these general steps, which apply to most eSIM-compatible devices:
Purchase Your eSIM Plan: Visit cellesim.com/en/esim-greece and select the data plan that fits your travel needs. Complete the purchase securely online.
Receive Your QR Code: You will instantly receive an email containing a QR code and detailed installation instructions.
Scan the QR Code (Before or Upon Arrival):
iPhone: Go to Settings > Cellular (or Mobile Data) > Add eSIM. Choose "Use QR Code" and scan the code. Follow the on-screen prompts.
Android (Samsung, Google Pixel, etc.): Go to Settings > Network & Internet > SIMs > Add SIM (or +). Select "Download a SIM instead" or "Use 2 SIMs" and scan the QR code.
Configure Settings:
Label your eSIM (e.g., "Greece Travel").
Choose the eSIM for mobile data. You can keep your primary SIM active for calls and texts if desired.
Ensure Data Roaming is ON for your eSIM (this is crucial for it to connect to the local network).
Connect to the Network: Once you land in Greece, your device will automatically detect and connect to a partner network (e.g., Cosmote, Vodafone, Nova), and your data service will begin.
Key Info: You can install your eSIM prior to your trip, but only activate "Data Roaming" for the eSIM once you arrive in Greece to avoid premature data usage.
Navigating Greek Networks: Coverage and Speed with eSIM
When you use a Cellesim eSIM in Greece, you're not connecting to a separate Cellesim network. Instead, your eSIM leverages the infrastructure of established local mobile network operators. In Greece, Cellesim partners with leading providers like Cosmote, Vodafone, and Nova. These networks offer extensive coverage across the Greek mainland and most of its popular islands.
Network Coverage:
Greece has made significant advancements in its mobile infrastructure, with 4G/LTE coverage being widespread in urban centers like Athens, Thessaloniki, and Patras, as well as popular tourist destinations such as Santorini, Mykonos, Crete, and Rhodes. Even in many rural areas and smaller islands, 4G connectivity is readily available. 5G networks are also expanding in major cities and tourist hubs, offering even faster speeds for those with compatible devices.
Speed and Performance:
Users of Cellesim eSIMs can expect robust data speeds comparable to those experienced by local SIM card users. This means smooth browsing, efficient use of navigation apps, reliable video calls, and seamless streaming of content. Network performance can, of course, vary depending on your exact location, time of day, and network congestion, but overall, the experience is designed to be high-quality.
Before you travel, it can be helpful to check general coverage maps from the major Greek providers (Cosmote, Vodafone, Nova) to get an idea of connectivity in very specific, remote areas you might be visiting. However, for most tourist itineraries, an eSIM will provide excellent coverage.
Cost Comparison: eSIM vs. Traditional Options in Greece
Understanding the costs involved in staying connected abroad is crucial for any budget-conscious traveler. When visiting Greece, you typically have three main options: using your home provider's international roaming, purchasing a local Greek physical SIM, or opting for an international eSIM.
Option
Price (7 days, approx.)
Setup Difficulty
AFM Requirement
Cellesim eSIM
From $4.50 (for 1GB)
Instant (QR scan)
None
Local Greek SIM
$15-30 (for 5-10GB)
High (store visit, AFM)
Yes
International Roaming
$10-15/day or $50-100/week
Automatic
None
International Roaming: While convenient, roaming is often the most expensive option. Daily passes can quickly add up, and pay-as-you-go rates for data are usually exorbitant. It's an easy choice, but rarely the economical one.
Local Greek SIM Card: On paper, local SIMs can offer good value for data. However, the requirement for an AFM number makes them impractical for most short-term tourists. The time and effort to obtain an AFM, plus the trip to a phone store, negate any potential savings for a typical holidaymaker. You might also need to understand some Greek for the process, which can be a barrier.
Cellesim eSIM: eSIMs provide an excellent balance of convenience and cost-effectiveness. You can purchase a plan that matches your data needs and travel duration, often at a price comparable to, or even better than, local SIMs without the administrative burden. The ability to activate before you even leave home ensures you're connected from the moment you land, avoiding high roaming charges.