The short answer
Yes, in most places. There's no global treaty banning virtual phone numbers, no major economy that's outlawed receiving SMS via a virtual number for personal use.
The longer answer: legality has three dimensions. First, is it legal to BUY a virtual number? (Yes, almost everywhere.) Second, is it legal to USE the number for verification? (Yes, in most cases.) Third, is what you're verifying for legal? (That's on you, not on the number provider.)
Countries where temporary numbers are legal
These are the major markets where buying and using a temporary number is fully legal for personal use:
- ›European Union (all 27 member states)
- ›United Kingdom
- ›United States and Canada
- ›Mexico, Brazil, Argentina, Colombia, Chile, and most Latin American countries
- ›Australia and New Zealand
- ›Japan, South Korea, Taiwan
- ›India (with the caveat that India's DLT rules affect commercial SMS, not personal use)
- ›South Africa, Nigeria, Kenya
- ›Most of Southeast Asia (except Vietnam, where rules are murkier)
Countries where it's restricted or illegal
A few countries either explicitly ban anonymous SIM/number use or have such heavy KYC requirements that virtual number use is effectively prevented:
- ›China — all SIMs require national ID; virtual numbers from outside China are technically usable but flagged.
- ›Russia — anonymous SIM cards are banned, and proxies/VPNs needed to access most virtual number services are increasingly blocked.
- ›Iran — anonymous communication is broadly restricted.
- ›North Korea — international communication services are banned period.
- ›Saudi Arabia and UAE — anonymous SIM cards require ID; foreign virtual numbers usable but in a gray area.
- ›Pakistan — recent regulations restrict anonymous SIMs.
What's illegal regardless of how you got the number
The legal status of the number doesn't change the legality of what you do with it. These activities remain illegal everywhere even with a virtual number:
Fraud — using SMS verification to commit financial fraud (fake bank accounts, money laundering, romance scams).
Harassment and stalking — using the number to threaten or stalk someone.
Identity theft — verifying accounts under someone else's name to commit fraud.
Evading court orders — using virtual numbers to violate restraining orders or no-contact orders.
Mass account creation for spam — many platforms' ToS prohibit this, and depending on jurisdiction it may also be a CFAA-style violation.
Sanctions evasion — using virtual numbers to circumvent financial sanctions or trade restrictions.
Platform Terms of Service
Beyond government law, individual platforms have their own rules. Most platforms (WhatsApp, Tinder, Instagram, ChatGPT, Discord) DO allow virtual numbers — their ToS only requires the number to receive SMS, not to be a SIM card you personally own.
A few platforms explicitly prohibit virtual numbers in their ToS — typically financial services (PayPal, Coinbase, Stripe) and some social platforms that have been heavily abused. Using a virtual number on those platforms isn't illegal, but it's a ToS violation that may get the account banned.
When in doubt, read the platform's ToS. If it specifically prohibits "VoIP numbers," "virtual numbers," or "non-SIM numbers," using a virtual number is risky — not legally, but for your account.
Practical advice
If you're in a country with no restrictions and you're using a virtual number for legitimate reasons (privacy, separating work and personal accounts, traveling), you're fully clear legally.
If you're unsure about your country, check whether your country has explicit anonymous-SIM laws. If anonymous SIMs are banned domestically, foreign virtual numbers exist in a gray area — usable, but if you're flagged you may have to explain.
If you're using a virtual number to do something the platform prohibits (e.g. multiple accounts to game referral bonuses, evading a ban), you're taking a ToS risk that the number doesn't protect you from.