Mongolia is one of the least densely populated countries on Earth, and staying connected across its vast steppes, deserts, and mountains takes a bit of planning. The good news: getting a prepaid SIM card in Mongolia is cheap, fast, and — in Ulaanbaatar at least — available almost everywhere. This guide covers everything you need to know about Mongolia’s three main mobile operators, MobiCom, Unitel, and Skytel, from network frequencies and coverage to prepaid plans, top-up codes, and eSIM alternatives.
Basics Information
Mongolia’s mobile market is dominated by four operators — MobiCom, Unitel, Skytel, and the smaller G-Mobile — with MobiCom and Unitel controlling the large majority of subscribers and offering the best nationwide reach. All four operate GSM-compatible networks with 4G/LTE available in Ulaanbaatar and major provincial centers, though rural and remote coverage thins out quickly once you leave paved roads. The country code is +976, and Mongolia uses the standard SIM card sizes (standard, micro, and nano), with most retail counters able to cut or swap sizes on the spot.
Because Mongolia has such a low population density — much of it nomadic — total network coverage of land area is far lower than coverage of population. A useful rule of thumb: if your itinerary stays close to Ulaanbaatar, Darkhan, Erdenet, and the paved highway corridors, you’ll have solid 4G most of the way. If you’re heading deep into the Gobi Desert or far western aimags, expect patchy 3G/2G or no signal at all for stretches.
Availability
Prepaid SIM cards are widely available and easy to buy as a foreign visitor. You generally just need your passport for registration — no local address or sponsor is required. Activation is usually completed in-store within 10–30 minutes, and the SIM is ready to use for calls, texts, and mobile data immediately afterward.
Where to Buy
- Chinggis Khaan International Airport (Ulaanbaatar): MobiCom and Unitel both operate desks in the arrivals area, making this the most convenient option immediately after landing — though prices and available bundles can be slightly less competitive than in the city.
- Official carrier stores and service centers: Found throughout Ulaanbaatar and in provincial (aimag) centers. Staff can register your SIM, load a data package, and explain top-up options.
- Authorized kiosks and convenience stores: Many corner shops and small kiosks sell starter SIM packs and top-up vouchers, especially in the capital.
- Online/pre-booked eSIM or physical SIM: Third-party travel eSIM marketplaces let you buy and even activate a data plan before you land.
English-language support is limited outside of major tourist-facing counters, so having your passport ready and knowing roughly which data package you want will speed things up considerably.
Frequencies
| Operator | 2G (GSM) | 3G (UMTS/HSPA) | 4G/LTE | Notes |
|---|---|---|---|---|
| MobiCom | 900 MHz | 2100 MHz | 1800 MHz (Band 3), 700 MHz (Band 28) | Broadest 4G footprint |
| Unitel | 900 MHz | 2100 MHz | 1800 MHz (Band 3), 700 MHz (Band 28) | Strong in UB & highway corridors |
| Skytel | Limited/CDMA legacy in rural areas | 2100 MHz (UMTS) | 4G in Ulaanbaatar and select cities | Smaller LTE footprint |
| G-Mobile | Limited | Limited | 1800 MHz (Ulaanbaatar, Erdenet, Darkhan only) | Urban-only 4G |
Always confirm your phone is unlocked and supports the relevant bands before you travel — most modern smartphones sold internationally support Mongolia’s LTE bands without issue, but budget or carrier-locked devices from some markets may not.
Coverage & Speed
| Operator | Population Coverage | Best For | Typical Speed |
|---|---|---|---|
| MobiCom | ~95% | Remote areas, nationwide reach | Fast, consistent 4G in cities |
| Unitel | ~88–95% | Ulaanbaatar & highway routes, often better value | Fast, consistent 4G |
| Skytel | ~80% | Budget urban use | Slower than MobiCom/Unitel |
| G-Mobile | Lowest of the four | Urban-only trips | Weakest overall |
For travelers heading into the countryside — the Gobi Desert, western aimags, or off the main highways — MobiCom and Unitel are the safer bets. Skytel and G-Mobile are best reserved for city-only stays.
At a Glance Comparison
| Feature | MobiCom | Unitel | Skytel |
|---|---|---|---|
| Market position | Largest operator | 2nd largest, close competitor | Smaller, budget-focused |
| Coverage | Strongest nationwide | Excellent in UB & main routes | Urban-focused |
| Pricing | Competitive, mid-range | Often cheapest data bundles | Most budget-friendly |
| Tourist-friendly plans | Yes — dedicated tourist/travel SIM bundles | Yes | Limited |
| eSIM support | Yes | Yes | Yes (via website) |
| App | Mobicom App (iOS/Android) | Unitel App | Skytel App |
| Best for | Nationwide travel, remote trips | Value-conscious travelers in UB & main corridors | Short city stays on a budget |
Biometric User Registration
Like many countries in the region, Mongolia requires identity registration for every SIM card, prepaid or postpaid. In practice, this means presenting your passport at the point of sale — the vendor records your passport details (and in many stores, takes a photo or scan of the passport page) before the SIM is activated. This is a standard anti-fraud and telecom-regulation measure rather than something unique to tourists, and it applies uniformly across MobiCom, Unitel, and Skytel. Keep your passport on hand any time you buy, replace, or top up certain plans, since some retailers re-verify ID for higher-value purchases.
Device Registration
Mongolia does not currently operate a strict nationwide IMEI-blocking regime for tourist devices in the way some countries do, but operators do record the IMEI of the device a SIM is first used in as part of standard account setup. Bringing an unlocked, factory-standard smartphone avoids any complications. If you plan to buy a local phone or a secondhand device in Mongolia, ask the seller to confirm it’s unlocked and legally registered before you buy a SIM for it.
SIM Card Price
The physical SIM card itself is inexpensive — often close to free or a few hundred to a few thousand MNT (Mongolian tögrög), roughly $0.25–$1 USD, sometimes bundled with a small amount of starting credit. The real cost is in the data/voice package you add on top. As a rough guide:
- Basic starter SIM: ~3,000–5,000 MNT (often includes small preloaded credit)
- Typical tourist SIM with a data bundle: 5,000–20,000 MNT (~$1.50–$6)
- A solid multi-GB, 30-day data package: 15,000–35,000 MNT (~$4–$10)
Top-Up Methods
- Scratch-card/voucher recharge: Buy a paper voucher from a kiosk or store and enter the code via USSD.
- Carrier app: All three major operators (MobiCom, Unitel, Skytel) have apps that let you top up by card, e-wallet, or bank transfer.
- Official website: Top up online using a credit or debit card.
- In-store recharge: Staff at any official store or authorized dealer can add credit directly to your number.
- QPay and local e-wallets: Widely used in Mongolia for everyday payments, including mobile top-ups.
MobiCom
Prepaid Plans
MobiCom is Mongolia’s largest operator, with the broadest population coverage (around 95%) and a dedicated tourist/travel SIM lineup offering combined credit for calls, SMS, and data, valid for a set number of days and extendable up to roughly 90 days. Regular prepaid data packages are also available and can be layered on top of a tourist bundle.
Data Add-Ons
| Package Type | Approx. Data | Validity | Approx. Price (MNT) |
|---|---|---|---|
| Tourist Combo (small) | Data + call/SMS credit | 7–15 days | ~10,000–15,000 |
| Tourist Combo (medium) | Data + call/SMS credit | 15–30 days | ~20,000–30,000 |
| Tourist Combo (large) | Data + call/SMS credit | up to 90 days | ~40,000–50,000+ |
| Standard data bundle | 5–10 GB | 30 days | ~15,000–25,000 |
| Night data pack | Large bundle, midnight–8 am use | 7 nights | ~1,500 |
Pricing and bundle sizes change with periodic promotions — confirm current rates in-app or in-store before purchasing.
Activation Codes
- Purchase/activate a bundle: via the Mobicom App (“Top up” / package menu) or by dialing the relevant short code shown in-store.
- Check call and unit balance: dial *210#, then select option 1.
- Check data balance: dial *210#, then select option 2.
- Older-style data balance check (some legacy plans): text “B” to 592.
Unitel
Prepaid Plans
Unitel is MobiCom’s closest rival and frequently wins on price for data bundles, with strong coverage in Ulaanbaatar and along the country’s main highway corridors — in some western provinces it even edges out MobiCom. Unitel prepaid SIMs commonly start around $5 for roughly 3 GB, valid for about 5 days, with larger 30-day bundles also available.
Data Add-Ons
| Package Type | Approx. Data | Validity | Approx. Price (MNT) |
|---|---|---|---|
| Short-stay bundle | 3 GB | 5 days | ~15,000 (~$5) |
| Standard bundle | 5 GB | 30 days | ~15,000–18,000 |
| Value bundle | 10 GB | 30 days | ~20,000–25,000 |
| Heavy-use bundle | Unlimited (throttled after ~20 GB) | 30 days | ~35,000 |
Activation Codes
- Recharge with a voucher: dial *1411*[voucher code]#
- Check account balance: dial *1411#
- Activate a Smart bundle: text 1 (Smart Talk), 2 (Smart Data), or 3 (Smart Time) to 1441
- Activate specific promotional bundles: text the relevant bundle code to 1423
Skytel
Prepaid Plans
Skytel is the more budget-oriented of the major operators, with solid urban coverage but a smaller LTE footprint outside the capital. It’s a reasonable choice if your trip stays within Ulaanbaatar or another major city, but it’s not the operator to rely on for remote countryside travel.
Data Add-Ons
| Package Type | Approx. Data | Validity | Approx. Price (MNT) |
|---|---|---|---|
| Daily pack | ~1 GB | 1 day | ~1,500–2,000 |
| Weekly pack | ~5 GB | 7 days | ~7,000 |
| Monthly pack | Varies by promotion | 30 days | Varies |
Activation Codes
Skytel’s short codes and current promotions are best confirmed directly through the Skytel app or at a Skytel service counter, as available bundles rotate more frequently than MobiCom’s or Unitel’s and dedicated English-language documentation is limited.
How to Check the Remaining Balance
- MobiCom: Dial *210# and choose the call/unit or data balance option, or open the Mobicom App and check the home screen balance widget.
- Unitel: Dial *1411# for your account balance, or check the Unitel App dashboard.
- Skytel: Open the Skytel App and view your balance on the main screen, or ask staff at a Skytel counter to check it for you.
USSD short codes occasionally change after network upgrades or promotions, so if a code doesn’t respond, the safest fallback is always the operator’s official app.
Official Websites
- MobiCom: https://www.mobicom.mn
- Unitel: https://www.unitel.mn
- Skytel: check current listings via the Communications Regulatory Commission of Mongolia or search “Skytel Mongolia” for the current official domain, as availability of an English-language site is limited
Apps
- Mobicom App — Google Play | App Store
- Unitel App — available on Google Play and the App Store; search “Unitel” within Mongolia’s region setting if it doesn’t appear directly
- Skytel App — available on Google Play and the App Store; search “Skytel Mongolia”
How to Check Your SIM Number
If you don’t know your new Mongolian number, the quickest options are:
- Ask the store staff to write it down when the SIM is activated (recommended, since it’s the most reliable).
- Check the SIM packaging or the accompanying paperwork/receipt, which usually lists the number.
- Open the carrier’s app after inserting the SIM — the number is typically shown on the account/home screen.
- Call a friend or use a second phone to call your own number and see it appear on caller ID.
Tourist SIM
MobiCom’s tourist/travel SIM combo is the most purpose-built option for short-term visitors, bundling data with call and SMS credit in one package, extendable up to about 90 days. Unitel and Skytel don’t market a dedicated “tourist SIM” brand in the same way, but their standard prepaid data bundles work just as well for visitors and are simple to activate with a passport at any store.
Roaming Data
If you’d rather not switch SIMs at all, check with your home carrier about international roaming rates for Mongolia before you travel — roaming charges are almost always significantly more expensive than buying a local prepaid SIM or eSIM, and coverage still depends on which local network your home carrier partners with. For most trips longer than a few days, a local SIM or eSIM works out cheaper and faster.
Digital eSIM Providers
If your phone supports eSIM, you can activate a Mongolia data plan before you even land, skipping the passport-registration counter entirely for short trips. Common third-party eSIM marketplaces offering Mongolia plans (via MobiCom or Unitel’s networks) include Airalo, Klook, and other regional eSIM resellers, alongside eSIM options available directly from MobiCom, Unitel, and Skytel’s own websites (which may require ID verification). eSIMs are convenient, instantly activated, and free up your physical SIM slot for your home number — a good option for shorter stays that don’t require a Mongolian phone number for local services.
Other Options
- Pocket Wi-Fi / mobile hotspot rental: Useful if you’re traveling with multiple devices or a group, since it shares one data connection across several people without swapping SIMs in individual phones.
- Hotel and guesthouse Wi-Fi: Common in Ulaanbaatar and larger towns, though speeds and reliability vary, and it’s essentially nonexistent once you’re out in the countryside.
- Satellite communicators: For serious backcountry travel (e.g., extended Gobi Desert expeditions) where no cellular coverage exists at all, a satellite messenger is worth considering as a safety backup.
Activation Help Line Numbers
- MobiCom customer support: available 24/7 through their in-app support and service centers; check the current hotline number listed on mobicom.mn as it may vary by service type.
- Unitel Group support: +976 7575 0505 (Mon–Fri, 09:00–18:00)
- Skytel customer support: available 24/7 via their call center; confirm the current number through the Skytel app or a local service counter.
Conclusion
For most travelers, MobiCom or Unitel will be the right call — MobiCom for its unmatched nationwide reach into remote areas, and Unitel for consistently competitive pricing along Ulaanbaatar and the main highway routes. Skytel and G-Mobile can work well enough for short, city-only stays but aren’t built for the countryside. Whichever operator you choose, buying a prepaid SIM in Mongolia is quick, inexpensive, and only requires your passport — and if you’d rather not deal with a physical SIM at all, eSIM options from all three major carriers and several international resellers make it possible to land already connected.
Prices, bundle sizes, and short codes mentioned in this guide are indicative and change periodically with carrier promotions — always confirm current rates and codes via the operator’s official app or a service counter before purchasing.