OnlineSim offers numbers in “110+ Countries” as 15-minute one-time rentals or longer-term rentals with unlimited incoming SMS, and its own page states the numbers can only accept incoming messages. Numero eSIM sells a number that calls, answers and texts in 39 countries, from $3.99 a month, and it stays yours for as long as you pay for it.
OnlineSim is a rental. You take a number for fifteen minutes or for a longer term, messages arrive on it, and that is the product. By its own description it stops short of being a line: incoming messages only, no calls, no replies, and a price you see only after picking a country. Numero eSIM sells the line: a number you own, use in both directions and keep, with data and calling on the same account.
Can you call or reply from an OnlineSim number?
No. OnlineSim's page says its numbers “can only accept incoming messages”. A Numero eSIM number makes and receives calls and sends SMS in all 39 countries, which is what turns a number into something a bank, a courier or a client can use to reach you.
What happens to the accounts tied to a rented number?
A rental ends; the accounts you registered with it do not. Every password reset and security check after that goes to a number you no longer hold. A Numero eSIM number stays yours for as long as you pay for it, so the recovery number on your accounts keeps working.
Can you see the price before you commit?
OnlineSim shows prices only after you select a country. Numero eSIM publishes the monthly price of every number country before you sign up: mobile numbers $3.99 to $38.00, additional countries from $4.00, toll-free from $7.00.
OnlineSim sells short-term and rented numbers for receiving SMS. The table compares it across all four Numero eSIM product lines; OnlineSim competes in part of one of them.
| What you compare | Numero eSIM | OnlineSimnot published |
|---|---|---|
| Countries with a numberWhere you can get a local line of your own | 39 countries you keep: 12 mobile-number countries, 32 additional countries and 8 toll-free countries, with a little overlap | “110+ Countries for Numbers” |
| Receive SMS and OTP codesWhether verification codes arrive | Not on every number. US, Canada and Nicaragua numbers receive SMS; most additional countries do not, which the country page states in advance | unlimited SMS on a rented number |
| Send SMS from the numberWhether you can reply, not only receive | Outbound SMS included on all 39 countries' numbers | “can only accept incoming messages” |
| WhatsApp verificationNarrower than receiving: not every number that receives SMS | Narrower still. 11 of the 12 mobile-number countries (every one but Nicaragua) and 2 of the 8 toll-free lines, Denmark and Colombia, listed per country | Not stated |
| Make and receive callsWhether it behaves like a real phone line | same wording | |
| Toll-free numbersA 1-800 style line customers call for free | 8: Canada, Colombia, Cyprus, Denmark, Dominican Republic, Hungary, Serbia, South Africa | Not offered |
| Monthly priceWhat one number costs per month | Mobile $3.99 to $38.00 · More Countries from $4.00 · Toll-Free $7.00 to $78.00 · USA areas $3.49 | One-time SMS (15-minute rental) or longer-term rental; prices shown only after selecting a country |
| What you compare | Numero eSIM | OnlineSimnot published |
|---|---|---|
| DestinationsWhere mobile data works when you travel | 181 countries + 7 regions | Not offered |
| Fair-use capWhat happens after the high-speed allowance | Published in the T&Cs: 2 GB at full speed in any 24-hour period, then 1 Mbps until that period ends | No data product |
| What you compare | Numero eSIM | OnlineSimnot published |
|---|---|---|
| DestinationsOne line carrying data, minutes and a number | 188 countries + 2 regions | Not offered |
| Entry priceCheapest way into the bundled product | €16.00 (20 GB, 30 days, number included) | Not applicable |
| What you compare | Numero eSIM | OnlineSimnot published |
|---|---|---|
| Calling plansCheap minutes to landlines and mobiles abroad | 17 local and 2 international plans | Not offered |
Last verified: September 2026
OnlineSim covers 110+ countries for numbers against Numero eSIM's 39, and its longer-term rental with unlimited incoming SMS is a step closer to a real line than a per-code service. By its own description it stops short of one: incoming messages only, no calls, no outbound texts, and no price until you have chosen a country.
A Numero eSIM number rings, replies and stays yours. It comes with published per-country pricing, toll-free lines in eight countries, a data eSIM in 181 countries and a full eSIM in 188 on the same account.
For receiving codes at scale across many countries, OnlineSim's list is broader than Numero eSIM's and its long-term rental is more durable than a pure per-activation service. If that is the job, it is a fair tool for it. It cannot be your number, though.
The closest all-round competitor: numbers in 180+ countries from $0.99 a month, plus data eSIMs. Compared with Numero eSIM row by row, including the rows MoreMins wins.
Numbers from around 180 countries rented per activation from $0.008 to receive one code; no outgoing SMS or calls. Numero eSIM sells a number you keep.
A free US number with free texting and free incoming calls, plus cheap calls to 200+ countries. Numero eSIM is the option when a US number is not enough.
Amazing eSIM service!
Numero eSIM made my trip to Europe seamless. Fast activation, great coverage, and no roaming fees. Highly recommend to every traveler!
Best travel companion
I've tried many eSIM providers but Numero is by far the best. The app is intuitive, plans are affordable, and customer support is top-notch.
Works perfectly worldwide
Used Numero across 8 countries in one trip. Never lost connection, data speeds were excellent everywhere. Will never travel without it.
Amazing eSIM service!
Numero eSIM made my trip to Europe seamless. Fast activation, great coverage, and no roaming fees. Highly recommend to every traveler!
Best travel companion
I've tried many eSIM providers but Numero is by far the best. The app is intuitive, plans are affordable, and customer support is top-notch.
Works perfectly worldwide
Used Numero across 8 countries in one trip. Never lost connection, data speeds were excellent everywhere. Will never travel without it.
Super easy to set up
Setup took less than 2 minutes. Scanned the QR code and I was connected instantly. Perfect for business travelers who need reliability.
Incredible value for money
The plans are very competitively priced and the service quality is outstanding. I've saved hundreds of dollars switching to Numero eSIM.
Reliable and fast always
I use Numero for every business trip. Coverage is consistent, speeds are fast, and the app makes managing plans incredibly simple.
FAQ Concept
Quick answers to the most common questions from travelers using a Numero Data eSIM.
Provides prepaid travel data across 200+ countries. Enjoy a steady, affordable internet connection anywhere you travel.
