What is Identity registration?
Niektóre kraje wymagają rejestracji użytkownika przed aktywacją. Tam, gdzie to obowiązuje, strona pakietu o tym informuje, więc miej przygotowany paszport.
Identity registration for using a SIM sounds like something that works the same way everywhere, but in reality it depends mainly on the rules of each destination country. Some countries have no such requirement at all for visitors, while others require identity verification before any SIM activation, whether that SIM is physical or an eSIM. This requirement does not come from the plan seller — it comes from the destination country's own rules, which the local network there has to follow.
This page is for anyone who has seen a note about identity registration on a plan page and is not sure what to prepare, or anyone about to buy a plan for a country they are not sure carries this requirement. It explains what identity registration is, why some countries require it, and how to prepare — without stating which country requires which rule, because these rules belong to each individual country and can change. The most accurate information is always what is stated directly on that destination's own plan page.

What identity registration actually is
Identity registration in this context means a step where the user has to present identifying information — a passport, typically — before a SIM or eSIM profile can actually be switched on within that country's network. It is a rule set by the destination country's own authorities, not a rule invented by the plan seller or by the network itself. The local network there is simply following a rule set at the state level.
This requirement varies a great deal between countries — both whether it exists at all, and what documentation it calls for where it does. Some countries need only basic passport details; others may involve a more elaborate process than that. The exact detail for any particular destination should always come from what is stated on that destination's own plan page, since that is the source kept aligned with the latest rule we are aware of.
Why some countries require identity registration
The reasoning behind such a requirement is a matter of each country's own internal policy, which is beyond what this page can explain on that government's behalf. What can be said plainly is that the requirement is not something an eSIM plan seller decided to add, and it is not something a plan seller can choose to include or drop at will.
How to know whether your destination requires it
The surest way is to open that destination's own plan page and read what is stated there. If that destination carries an identity-registration requirement, the plan page states it clearly, along with what needs preparing. There is no need to guess from a previous trip's experience or from what a friend encountered in a different country, because the rules genuinely differ from one country to the next.
If the plan page makes no mention of this at all, that usually means the destination carries no such requirement for that case. But if in doubt, or wanting to confirm before buying, message the team on LINE or by email ahead of the purchase — especially if the trip matters and time will be limited on arrival.
Documents typically requested where this applies
Where a destination carries this requirement, the document requested is almost always a passport, since it is the identifying document most travellers already carry when crossing borders internationally. Have the passport ready and in a condition where its details are clearly readable before reaching this step, whether the verification involves entering the information yourself or some additional process beyond that.
How the verification step typically unfolds where it applies
- 1Read the destination's plan page before buyingCheck whether a note about identity registration is stated, and whether guidance on the documents to prepare comes with it.
- 2Have the passport ready before the installation stepPhotograph the page carrying the key details clearly, or keep the physical document close by, in case the step needs information from that page during the process.
- 3Complete verification following the plan page's own guidanceFollow the steps stated specifically for that destination in full, since the details differ by country and by plan.
- 4Message the team if the step fails or is unclearNapisz do nas na LINE pod adresem https://lin.ee/skDPoNx albo e-mailem na esimonline.asia@gmail.com, opisując dokładnie, w którym momencie coś utknęło, a zespół pomoże sprawdzić dostępne informacje.

Identity registration and time pressure at the airport
Many trips carry a tight connection window, or limited time between landing and needing to move on. If profile installation has to pass through an identity-registration step first, waiting until that moment to begin can mean missing the window when internet is actually needed right after landing — calling a ride or checking a map to the accommodation, for instance.
The safer approach is starting the installation and verification step before boarding the flight, if the plan's validity begins at first connection to the destination network rather than at installation itself, since that leaves room to complete a step that takes time well ahead, comfortably, without eating into the plan's own validity.
What happens if this step is skipped
If a destination requires identity registration and the step is not completed, the usual outcome is that the profile cannot activate fully, or stays restricted until verification succeeds. This is because it is a condition the local network there has to follow under that country's own rule — it is not an optional step a user can simply skip if they would rather not do it.
In that case, a plan seller like us has no way to bypass the step on the user's behalf, because it is a condition the network itself has built into the system. If a problem comes up during this step, the best approach is to follow the guidance stated on the plan page in full, and to contact the team if it still has not succeeded after trying.
Identity registration for an eSIM versus a physical SIM
The identity-registration requirement, where a destination genuinely has one, usually applies equally to eSIM and to physical SIM, because it is a rule tied to activating a number on that network, not to whether the SIM takes the form of a card or a digital profile. The real difference usually lies in the channel used to verify — a digital verification through an app for an eSIM, compared with an in-person counter verification for a physical SIM bought in a shop.
What happens to the personal information provided in this step
The information provided during identity verification, such as passport details, is passed to the destination network's own systems in order to meet that country's requirement — it is not information the plan seller keeps for any other purpose. Questions about how that country's network stores or uses the information should be directed to that network or the relevant authority there directly, since it falls outside what a plan seller can answer on their behalf.
Identity registration and buying plans as a group
If buying several plans at once for multiple travellers on the same trip, and that destination carries an identity-registration requirement, each profile usually needs verifying separately against the person who will actually use it, since the requirement is tied to each individual user rather than to whoever made the single purchase. Allow enough time for every member of the group to get through this step before the day of travel.
Overall, the thing worth remembering is that identity registration is the destination country's own rule, not a step the plan seller has added on its own accord. Having a passport ready and reading the plan page in full before buying is what helps this step go through as smoothly as possible whenever a destination genuinely requires it.

Comparing common situations
| Situation | What typically happens |
|---|---|
| Plan page states identity registration is required | Need to prepare a passport and complete the stated steps before full activation |
| Plan page makes no mention of this at all | Usually means no such requirement for that destination, though it can be confirmed if unsure |
| Buying several plans for a group of travellers | Each profile usually needs verifying separately against its actual user |
| Verification step fails or gets stuck | Contact the team on LINE or by email describing exactly where it got stuck |
If the destination's rule changes after a plan has already been bought
Identity-registration rules belong to each country, and a country can change its own rule at any time without a plan seller necessarily knowing in advance. If a plan was bought well ahead of the travel date and the destination's rule shifts in the meantime, the actual step required at installation time may differ from what was read at the time of purchase.
The safest approach is to reopen that destination's plan page again close to the actual travel date, rather than relying on memory from the time of purchase alone — especially if it was bought weeks or months in advance, since the plan page is usually kept aligned with the latest rule known to us at that time.
Identity registration for trips made repeatedly
Someone who travels to the same destination repeatedly might wonder whether identity registration completed once carries over to the next trip. That depends on whether the eSIM profile bought for each trip is the same profile or a fresh one. If a new plan is bought for each trip, that profile counts as new in the eyes of the destination network, which usually means going through identity registration again from scratch.
It should not be assumed that having gone through this step on a previous trip means the next trip skips it automatically. Allow time for identity registration again each time a new plan is bought for a destination that carries this requirement, even a destination visited several times before.
Identity registration and travellers without their own passport
Some trips involve a child or a family member travelling on a device registered under a parent's name instead. Where the destination carries an identity-registration requirement, it usually calls for the parent's or the plan buyer's own document, since that is the person with a passport available to verify — not the child's, who may not yet have a passport of their own at all.
The exact detail for a case like this differs by destination and by that plan's own verification system. If unsure how to proceed for a child or anyone without their own passport, message the team on LINE or by email before buying, so the team can help clarify the right approach for that case well before the actual day of travel.
Identity registration is not a credit or background check
Many people mistake this step for something like a credit application or a background check, since it calls for the same kind of identifying document. In reality the purpose is entirely different. Identity registration for activating a SIM exists only to record who is using that number or profile on the network, as required by the destination country's own rule — it has nothing to do with assessing financial standing or anything beyond that.
Because of that, the outcome of this step is not an approval-or-rejection decision in the way a credit application would be. If the document details provided are accurate and complete as the system requires, verification usually goes through without any hidden extra condition. Most problems that do come up tend to trace back to entered details not matching the actual document, rather than anything else.
A checklist before buying a plan for a country that may require identity registration
- Read the destination's plan page in full before buying, checking for a note on identity registration
- Have the passport ready and its details clearly readable before the day of travel
- Allow enough time for the verification step, rather than leaving it until close to flight time
- If buying for several people in a group, prepare each person's own details separately
- Message the team on LINE or by email before buying if unsure whether the destination requires identity registration
FAQ
Does every country require identity registration before using an eSIM?+
Not every country. Some carry no such requirement for visitors at all, while others genuinely do. Check what is stated on that destination's own plan page as the primary source.
What documents are needed if a destination requires identity registration?+
The document requested is almost always a passport. Have it ready with its details clearly readable before reaching this step, with the exact detail found on that destination's own plan page.
What happens if the identity-registration step is skipped?+
The profile usually cannot activate fully, or stays restricted until verification succeeds, since it is a condition the local network there has to follow under that country's rule — not a step that can simply be skipped.
When buying plans for several friends at once, how many times does identity registration need doing?+
Generally it needs doing separately for each actual user, since the requirement is tied to each individual person, not to whoever made the single purchase. Allow enough time for everyone in the group before the day of travel.
What is the information provided during identity registration used for?+
The information is passed to that destination network's own systems to meet that country's requirement. Questions about how it is stored or used should go directly to that network or the relevant authority there.
If unsure whether a destination requires identity registration, what should be done?+
Read that destination's own plan page first. If still unsure, message us on LINE at https://lin.ee/skDPoNx or email esimonline.asia@gmail.com before buying, and the team will help check the available information.