Tiger SMS is an activation marketplace. According to its website, one number receives one SMS from the service you selected at purchase, and if the code does not come you can cancel and the funds return to your balance. It advertises coverage in well over 200 countries, an API for bulk purchases, and payment by bank card, e-money and cryptocurrency.
That design is efficient for a single code and nothing else. Once the activation ends, the number goes back to the pool, and future codes for your account — a new-device login, a password reset, a security check — may reach someone else. Public reviews are mixed: many users praise speed and price, while others report numbers that did not receive codes for specific services.
PhoneBorn is built for the opposite need. A plan gives you a real mobile number that stays assigned to you as long as you renew, with unlimited incoming SMS and calls plus 500 outgoing SMS and 1,000 calling minutes a month. For true one-off codes, PhoneBorn's OTP numbers are single-use and refunded automatically if no code arrives.
Facts here reflect Tiger SMS's public information as of September 2026 — check the provider's current terms. Tiger SMS is a trademark of its owner; PhoneBorn is not affiliated.