Zadarma publishes “30 000 phone numbers in 110 countries worldwide”, including toll-free lines, from $4 per user per month for its PBX plans. Its pages describe receiving calls and forwarding them; placing calls out from the number is not stated. It sells no eSIM or data product. Numero eSIM sells a phone line to one person: a number in 39 countries from $3.99 a month that calls, answers and texts, with data and a full eSIM on the same account.
Zadarma's 110 countries and 30,000 numbers dwarf Numero eSIM's 39, and it sells toll-free lines too. It is a bigger telephony inventory by any measure. The difference is what the product is for. Zadarma sells a PBX, a business phone system with extensions, routing and forwarding, priced per user. Numero eSIM sells a line: you call, you answer, you text, from the app, in 39 countries, for one person.
Can you place a call from a Zadarma number?
Zadarma's pages describe receiving calls and forwarding them and do not state that you can call out from the virtual number itself. A Numero eSIM number makes calls, takes calls and sends SMS in all 39 countries.
Who is each product for?
Zadarma is for a company setting up a phone system, with PBX plans from $4 per user per month and number rates on a separate page. Numero eSIM is for one person who wants one working number, from $3.99 a month with a published price per country and toll-free lines in eight countries.
What about the rest of the trip?
Zadarma sells no data and no eSIM. Numero eSIM sells a data eSIM in 181 countries and a full eSIM in 188 that carries data, minutes and a real number together.
Zadarma is a business VoIP and PBX provider. The table compares it across all four Numero eSIM product lines; Zadarma competes in one of them.
| What you compare | Numero eSIM | Zadarmanot published |
|---|---|---|
| Countries with a numberWhere you can get a local line of your own | 39 countries for one line: 12 mobile-number countries, 32 additional countries and 8 toll-free countries, with some overlap | “30 000 phone numbers in 110 countries worldwide” |
| Receive SMS and OTP codesWhether verification codes arrive | Depends on the country. The US, Canada and Nicaragua numbers receive SMS; most additional countries do not, which each country page states | |
| Send SMS from the numberWhether you can reply, not only receive | Both directions on every number, in all 39 countries | Partly: “mobile phone numbers with SMS capabilities” |
| WhatsApp verificationNarrower than receiving: not every number that receives SMS | Narrower than receiving. 11 of the 12 mobile-number countries (every one except Nicaragua) plus the toll-free lines in Denmark and Colombia | Not stated |
| Make and receive callsWhether it behaves like a real phone line | inbound and forwarding; outbound not stated | |
| Toll-free numbersA 1-800 style line customers call for free | 8: Canada, Colombia, Cyprus, Denmark, Dominican Republic, Hungary, Serbia, South Africa | “toll-free numbers for free customer calls” |
| 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 | $4 user/month (PBX plans); number rates on a separate page |
| What you compare | Numero eSIM | Zadarmanot 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 of high-speed data in any 24-hour period, then 1 Mbps until the reset | No data product |
| What you compare | Numero eSIM | Zadarmanot 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 | Zadarmanot published |
|---|---|---|
| Calling plansCheap minutes to landlines and mobiles abroad | 17 local and 2 international plans | Not stated |
Last verified: September 2026
Zadarma is a bigger inventory and a different product. Its numbers, countries and toll-free lines outnumber Numero eSIM's, and they come as parts of a per-user phone system whose pages describe inbound calls and forwarding and do not describe a line you dial out from.
One number, one person, one published price: $3.99 a month upwards by country, with SMS and calls in both directions, and the same account carrying data in 181 countries, a full eSIM in 188 and 19 calling plans.
If you are setting up a company's phone system across many countries, Zadarma is the right category of product and Numero eSIM is not competing for that buyer. 110 countries, 30,000 numbers, toll-free lines and PBX features are exactly what that job needs.
Private second numbers in Canada, the US and the UK from $6.99 a month. Numero eSIM covers 39 countries from $3.99, with toll-free lines in eight of them.
A free US number for individuals, and only in the US. Numero eSIM sells a number in 39 countries from $3.99 a month, with travel data and a full eSIM on the same account.
Sites that rent someone else's number for the seconds a code takes to arrive, with their limits in their own words. Compared with a virtual number you own.
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