The short answer
Yes. Virtual phone numbers are legal in almost every country. They are provisioned by licensed carriers and follow the same regulations as traditional numbers.
Regulated markets
Some countries — Germany, France, Switzerland, Belgium, and others — require an address of record before activating a geographic number. Your provider will guide you through the required documents.
Consent and privacy
Regulations like GDPR and TCPA govern how you contact customers, not the number itself. Follow local consent rules for calls and SMS.
What is not allowed
Using a virtual number for fraud, harassment, or spoofing is illegal everywhere. Legitimate business use is welcomed by carriers and regulators.