Mongolia eSIM: What CRC Resolution 74 Asks of a Local Number
Mongolia registers the subscriber when a local number is issued, not the device — and no IMEI register was found in the statute. 12 plans on Mobicom 4G, checked 15 September 2026.
12 plans for Mongolia, from 1 GB at $3.99 to 20 GB at $21.99, plus 6 unlimited-data tiers. 5 GB for 30 days costs $8.99 — 3rd cheapest of 29 in Asia, against a $10.99 median. Our retail prices from the operator catalogue, checked 28 September 2026.
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Unlimited data — you pick the days
Data only: the profile carries no phone number, your own stays as it is. Not sure of the size? Work it out from your trip. Terms and refunds.
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What travellers say
What it costs per day
Cheapest per day: 3 GB for 30 days at 23¢ a day. The dearest per day is Unlimited for 3 days at $4.33. Short plans always cost more per day: validity is rounded up, and unused days are paid for anyway.
How much data to buy
Four ways people use a phone abroad, sized against this country’s own plans. The gigabytes are an estimate built from published per-hour rates — nobody measured your phone.
The hours behind each row are our assumption, not yours — put your own in and the same rates do the arithmetic.
Where a row shows a range, the cell is sized on the lower number, which assumes the evening runs on hotel Wi-Fi. On mobile data around the clock, read the upper number and take the next size up. The per-hour rates and the 15% added for background traffic are listed with their sources in the calculator.
What applies in Mongolia
Operator facts from the Airalo catalogue, read 28 September 2026. Rules and networks change — check the date before you rely on a line here.
Does Mongolia’s registration rule reach this eSIM?
No, on the text we read: the duty fires when a Mongolian number is issued, and this profile is not one. CRC resolution No. 74 opens its registration clause with the trigger — “5.5.2. Хэрэглэгчид дугаар олгож ашиглуулахдаа Харилцаа холбооны тухай хуулийн 25 дугаар зүйлийн 25.2.11-ийг баримтлан дараах шаардлагын дагуу бүртгэнэ:” — which translates as: when issuing a number to a user for use, the provider shall register it, following article 25.2.11 of the Law on Communications. A travel eSIM for Mongolia roams on Mobicom under a foreign-issued profile. No Mongolian number is allocated to you, and no contract with a Mongolian operator is signed.
The law backs that reading in its own definitions. Article 3.1.6 says “3.1.6."хэрэглэгч" гэж харилцаа холбооны үйлчилгээ үзүүлэх гэрээнд үйлчилгээг худалдан авах эрхтэйгээр оролцож байгаа иргэн, хуулийн этгээдийг;” — a user is a citizen or legal entity participating in a communications service contract with the right to purchase the service. Neither the Law on Communications nor resolution No. 74 uses the word roaming anywhere, which is why this is our reading of the scope clause rather than a statement by the regulator.
The catalogue agrees on the practical side: no identity document is asked for at purchase, and the profile arrives as a QR code by email (operator catalogue, checked 15 September 2026).
What does the law require before a Mongolian number is issued?
It puts the duty on the operator, not on you. Article 25.2.11 of the Law on Communications, added by the amendment of 30 May 2019 and amended on 3 June 2022, reads “25.2.Үйлчлэгч нь дараахь үүрэгтэй байна: … 25.2.11.хэрэглэгчийг иргэний бүртгэлийн дугаараар бүртгэх;” — the service provider has the duty to register the user by civil registration number. The verb belongs to the provider throughout.
Resolution No. 74 of the Communications Regulatory Commission, adopted 17 December 2021, is where the detail lives. It was amended by resolution No. 30 of 30 March 2023, and resolution No. 40 of 13 February 2025 repealed a block of clauses on number allocation. The registration clauses 5.5.1 to 5.5.5 were not among them, so they still stand as we read them on 15 September 2026.
What is a foreign visitor asked for?
A passport, plus a registration number most tourists do not hold. Clause 5.5.2.3, in the wording of resolution No. 30 of 30 March 2023, reads “5.5.2.3. Монгол Улсад оршин суугаа эсхүл дамжин өнгөрч буй гадаад иргэнд дугаарыг тухайн иргэний паспортыг үндэслэн улсын нэр, овог, нэр, иргэний бүртгэлийн дугаар болон Гадаадын иргэн харьяатын газраас олгосон гадаадын иргэний бүртгэлийн дугаараар баталгаажуулан бүртгэх;”. In English: a number issued to a foreign national residing in or transiting Mongolia is registered on the basis of that person’s passport — country, surname, given name, civil registration number — and verified by the foreign-national registration number issued by the Immigration Agency.
That last requirement is the gap worth naming. A visitor on a short trip has no Immigration Agency registration number, and the clause does not say what a provider does in that case. We found no published procedure resolving it. This is a hole in the document, not a rule we can state for you — and it is a reason a local SIM counter can turn into a longer conversation than expected.
How many lines can one person hold?
Five active numbers, with data-only lines excluded from the count. Clause 5.5.3 reads “5.5.3. Хувь хэрэглэгч буюу иргэнд тав хүртэлх, 16-аас доош насны хүүхдэд нэг ашиглах боломжтой /идэвхтэй/ дугаарыг олгоно.” — an individual user, that is a citizen, is issued up to five usable, active numbers, and a child under 16 gets one. Clause 5.5.4 then carves out the case that matters here: “Харилцан холболт хийхгүй дата үйлчилгээний дугаар … энэхүү журмын 5.5.3-т заасан хязгаарлалтад оруулж тооцохгүй.” — data service numbers without interconnection are not counted toward the limit in 5.5.3.
Read the wording closely and the limit is written for “иргэн”, a citizen. Whether it binds a foreign visitor is not stated. We flag the ambiguity rather than resolve it.
Does Mongolia register or block handsets by IMEI?
No such rule was found in the statutes we read on 15 September 2026. The string IMEI does not occur in the Law on Communications, nor in resolution No. 74. We also searched the regulator’s own site, the Ministry of Digital Development’s half-year report for 2025, and the Mongolian-language web. This is a counted negative result, not a guarantee — five countries do run a device register, and what each of them demands is the comparison that shows how different they are.
What exists instead is aimed at theft and is voluntary. A pilot registry was reported on 20 February 2019 by olloo.mn: the regulator, the National Data Centre, the mobile operators and the crime prevention council started trialling smartphone registration, with more than 8,000 users signed up in the first weeks, and a lost handset moved to a blacklist across the four operators. On 7 June 2024 the E-Mongolia platform announced an IMEI lookup service, which in its own words “helps prevent the purchase of stolen devices”. A lookup is not a register, and neither blocks the phone in your pocket.
Type approval is the one duty on equipment, and it lands on the market, not on a traveller. The regulator certifies equipment models and quotes the radio-waves law: “иргэн, хуулийн этгээд тохирлын баталгаагүй радио тоног төхөөрөмж ашиглахыг хориглоно” — citizens and legal entities are prohibited from using radio equipment without conformity assurance. That scheme works model by model for equipment placed on the Mongolian market, and the document describes no network blocking and no visitor exemption. An industry blog reports a further certification resolution numbered 24 of 2026; we have not read it at the regulator and do not rely on it.
Will WhatsApp calls work?
Yes — we found no rule restricting them. Neither the Law on Communications, nor the voice licence conditions, nor the regulator’s site carries a restriction on calls made inside WhatsApp, Viber or Messenger. The only IP-telephony text is a licence definition covering operators who use numbers the Commission allocates, which is a different thing from an app riding on your data connection.
One limit comes from the product rather than the law: this profile is data-only. Calls and messages inside apps work, ordinary calls and SMS do not, because there is no Mongolian number attached (operator catalogue, checked 15 September 2026).
What do you get in the catalogue?
Twelve plans on one profile, all roaming on Mobicom at 4G. The smallest is listed as 1.046875 GB over 7 days at $3.99, the largest 20 GB over 30 days at $21.99, with six unlimited-data tiers from three to 30 days starting at $12.99 (operator catalogue, checked 15 September 2026). The network is specified as 4G, not 5G, on every one of them.
Two details decide when to buy. The day count starts at first network use, not at installation, so a profile installed at home costs you nothing until you land. The QR code stays valid for a year after purchase — how that install window works is the same across most of this catalogue. The profile is rechargeable, so a top-up lands on the eSIM you already installed.
How do you install it, and what does it not do?
Install before you fly, on Wi-Fi. The profile arrives as a QR code by email and needs a working connection to install, which is exactly what an arrivals hall often lacks. Confirm it shows up in your phone’s eSIM list before you board. Step-by-step: the iPhone guide and the Android guide.
What it cannot do is stand in for a local line. There is no Mongolian number, no SMS and no voice, so anything gated behind a local code sits outside it — a bank verification, a delivery app, a government service. Keep your home SIM in the phone for codes and let the eSIM carry the data.
FAQ
Does Mongolia’s SIM-registration rule apply to a travel eSIM?
Do I need to register my phone’s IMEI in Mongolia?
What would a local Mongolian SIM ask me for?
Will I get 5G on this eSIM?
Can I keep my own number while using it?
Sources and freshness
Read on 15 September 2026: the Law on Communications of Mongolia of 18 October 2001, in the consolidated text carrying amendments to 5 June 2024, and resolution No. 74 of the Communications Regulatory Commission of 17 December 2021 with its amendments by resolution No. 30 of 30 March 2023 and resolution No. 40 of 13 February 2025, both at legalinfo.mn; the Commission’s own certification page; the pilot registry report of 20 February 2019 at olloo.mn; and the E-Mongolia announcement of 7 June 2024. Catalogue facts come from the operator catalogue, checked 15 September 2026. Rules change without notice — verify before you fly.
AdvisorySources cited only — expert review pending. For individualized advice, consult a licensed professional.