If you're living abroad, studying overseas or travelling long-term, you may want to keep your home-country phone number for as little as possible. Many mobile carriers and budget providers sell very low-cost plans with voice and SMS that are designed to keep a number active. Plans that look alike can still differ in how data charges grow, how calls are billed and how easy they are to manage from abroad. This guide is for people who spend long periods away from home. It shows how to compare two common types of low-cost plan, assuming you want to keep the fixed cost of your number low and get your travel data separately.
- If you only need to keep your number and use 1GB or less a month, a flat low-tier plan is usually the better value
- If you sometimes use a few GB, a tiered pay-as-you-go plan is worth comparing
- For keeping a number, look for voice, SMS and eSIM support
- Before you sign up, check on the provider's official site whether SMS works while you're abroad
- Getting your travel data from a separate data-only eSIM is easier to manage
- If you use 1GB or less a month and mainly want to keep your number, a flat low-tier plan (a small fixed allowance plus a set charge for each extra GB) is often the most affordable. If you sometimes use a few GB, a tiered pay-as-you-go plan is worth comparing too.
- Both types usually include voice, SMS and eSIM, which makes them good for keeping a number. But their data allowances are small. Things are simpler if you plan from the start to cover travel and long stays with a data-only eSIM.
- Check on each provider's official site whether you can receive SMS abroad. If you live overseas, a low monthly price matters less than being able to receive verification codes when you need them.
Prices, data allowances, call rates and the rules for receiving SMS abroad vary by provider and can change. Always check the latest details on the provider's official website before you sign up.
What does keeping a number mean, and what catches people out abroad?
Keeping a number means having a plan mainly to keep your home-country phone number active, not to use it heavily for calls or data. When you're away for a long time, that number becomes more than a contact detail. Your bank back home, investment accounts, government services and many apps may send verification codes by SMS to that number. If you cancel it, you may not be able to receive those codes, and changing your details can take a lot of time. So many people want to keep a number they barely use, and look for the cheapest plan with voice and SMS.
One thing to watch: SMS sent to your home-country number may not reach you while you're abroad. Whether it does depends on the plan and on how the line handles roaming, and the rules can change. If you choose a plan only because it's cheap, you may find that the verification codes you need don't arrive. When you compare plans, check the provider's official rules for receiving SMS abroad as closely as you check the price.
Key terms
- Number-keeping plan: a low-cost mobile plan used mainly to keep a phone number active for SMS verification and calls. These plans usually come with only a small amount of data.
- Data-only eSIM: an eSIM for internet access only, with no phone number or SMS. Useful when you want to buy only the data you need while abroad.
- Pay-as-you-go: billing where your charge goes up with the data you use. It's cheap if you use very little, but it can cost more than you expect if you use a lot.
Two common plan types and how their charges grow
Flat low-tier plans include a small fixed amount of data, often around 1GB, for a low monthly fee. If you use more, you pay a set amount for each extra GB, sometimes up to a cap. Some also offer an optional bundle of call minutes, which can help if you make short calls now and then.
Tiered pay-as-you-go plans start at a very low base price if you use almost no data, sometimes under 100MB. The charge then goes up in steps as you use more. Calls are usually billed per minute or per 30 seconds. These plans cover a wide range, from almost no data up to a few GB. As a rough guide, a flat low-tier plan suits light use of around 1GB, while a tiered plan is worth comparing if some months you use a few GB. Many providers of both types now support eSIM. That means you can sign up and get connected from abroad without waiting for a physical SIM in the post.
| Feature | Flat low-tier plan | Tiered pay-as-you-go plan |
|---|---|---|
| Starting price | Low fixed fee for a small allowance (about 1GB) | Very low base fee for minimal data |
| How charges grow | Allowance plus a set fee per extra GB (sometimes capped) | Price goes up in steps with usage |
| Voice/SMS | Usually included (optional call bundles may be available) | Usually included (calls billed per minute or per 30 seconds) |
| eSIM | Often supported (check) | Often supported (check) |
| SMS while abroad | Check the official site | Check the official site |
| Best for | Up to about 1GB a month | Months when you sometimes use a few GB |
*This table only describes plan types in general terms. Check call rates, SMS charges, extra data fees and how each plan works abroad on the provider's official site, and confirm prices when you buy.
A closer look at how data charges grow
If your main goal is to keep your number, you probably won't use much data. Flat low-tier plans are easy to understand: you get a base allowance and pay only for what you use above it. Tiered plans start lower, so a month with almost no data use may cost even less. But with any pay-as-you-go billing, app updates or background data can use data without you noticing and push the bill up. To keep the cost predictable, turn off mobile data on that SIM when you don't need it and set app updates to Wi-Fi only.
Which type suits you?
| If you… | Consider |
|---|---|
| Just want to keep your number as cheaply as possible (1GB or less a month) | A flat low-tier plan |
| Sometimes use a few GB | Compare a tiered pay-as-you-go plan too |
| Make several short calls | A plan with an optional call bundle |
| Want to keep each month's bill as low as possible | A tiered plan with small usage steps |
Low-cost voice plans suit people who want to keep their number for as little as possible. If you live abroad, also check on the official site that you can receive SMS while you're abroad. Two plans with similar prices can give you very different peace of mind, depending on whether verification codes reach you. The data allowance is small anyway, so plan from the start to add data with an eSIM. That keeps your fixed costs and your data separate, which is much simpler to manage.
Who this approach suits, and who it doesn't
Good fit
- People who want to keep their home-country number at low cost
- People who need the number mainly for SMS verification
- People who are happy to get data abroad another way
- People who want to sign up and manage everything online with an eSIM
Not a good fit
- People who want one SIM that covers heavy data use every month
- People who need reliable SMS while abroad (delivery isn't guaranteed)
- People who want their number, calls and data all from one provider
What to check if you live abroad
1. Rules for receiving SMS abroad
Whether SMS to your home-country number reaches you abroad matters more than the price. Even where it works, there may be conditions, and they can change, so check the provider's official site before you sign up. In case verification codes don't arrive, set up other ways to verify your identity as well, such as an authenticator app (TOTP) or email verification.
2. eSIM support
Getting a physical SIM delivered abroad can be a hassle. If the plan supports eSIM and your phone is compatible, you can sign up and get connected online. If you're not sure whether your phone supports eSIM, start with our eSIM compatibility check.
3. Payment method and renewals
While you live abroad, a billing address change or an expired card can stop your payments. If payments fail, you could lose your number, so check now and then that your payment method is still valid.
Pairing a number-keeping plan with a data eSIM
Low-cost voice plans are good for keeping a number, but their data is limited. If you get your data abroad from a data-only eSIM that you top up as needed, your fixed cost (keeping the number) stays separate from your variable cost (travel data). That makes both easier to manage. Bloomy data plans come in sizes such as 1GB, 3GB, 5GB, 10GB and 20GB (check coverage for your destination). Prices vary by destination and data size, and a fair use policy applies, so check the current prices, policy and supported countries on our comparison page when you buy.
Please note that Bloomy is a data-only eSIM. It does not include a phone number, SMS or voice calls. Keep your number with your home carrier, and use Bloomy for data while you're abroad. When you have a data connection, you can usually use apps like WhatsApp for calls and messages. Connection quality depends on the local network, your device and your location.
Common mistakes (and how to avoid them)
- Choosing on price alone without checking SMS abroad: confirm on the official site that verification codes will reach you.
- Paying for extra data at pay-as-you-go rates and getting a bigger bill than expected: get your data from a separate eSIM so costs are easier to predict.
- Not being able to receive a physical SIM abroad: sign up with eSIM to make things easier.
- Relying only on SMS for verification: set up an authenticator app or email verification as a backup.
Next steps
- Estimate how much data you use each month (1GB or less, or a few GB)
- Check each plan's official rules for SMS abroad, its extra data charges and eSIM support
- Split the roles: a low-cost voice plan for your number and an eSIM for data abroad
- Set up backup verification methods (an authenticator app or email)
Summary
Flat low-tier plans and tiered pay-as-you-go plans are both low-cost ways to keep your home-country number. If you use up to about 1GB a month, a flat low-tier plan is often the better value. If you sometimes use a few GB, compare tiered plans too. The data allowance is small either way, so plan from the start to get your data abroad from an eSIM. That keeps your fixed costs down and your number ready for verification codes. Prices and SMS rules can change, so check each provider's official site before you sign up. With your travel data sorted too, you'll be ready to get connected as soon as you arrive.
Frequently asked questions (FAQ)
You'll find answers to common questions about keeping your number in our phone number and SMS articles. To choose a data eSIM for your trip, use our eSIM comparison page to search by destination, data size and number of days.
Related pages
- Articles on phone numbers and SMS verification
- eSIM guide (basics and how-tos)
- Compare eSIM plans for your destination
- Check eSIM-compatible devices
- Frequently asked questions (FAQ)
This article is for general information only. Plan prices, call rates, extra data charges and whether SMS can be received abroad change over time. Check each provider's official website before you sign up. We do not guarantee that you can receive SMS to your home-country number while abroad. Bloomy is a data-only eSIM and does not include a phone number, SMS or voice calls. A fair use policy applies, and connection quality depends on the local network, your device and your location.
eSIM guides for popular destinations
- eSIM guide for South Korea (prices, networks, setup)
- eSIM guide for Thailand (prices, networks, setup)
- eSIM guide for United States (prices, networks, setup)
- eSIM guide for Australia (prices, networks, setup)
- eSIM guide for Canada (prices, networks, setup)
