Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
SMS.SB is an SMS verification code receiving and virtual number rental service, mainly offering short-term one-time numbers and long-term rented numbers. Short-term numbers are intended for one-off OTP verification, while long-term numbers support rental periods from 1 day to 12 months and claim to allow unlimited SMS reception. The site emphasizes a non-VoIP approach, making it suitable for verification scenarios where platforms block VoIP numbers.
In terms of channels, SMS.SB is primarily an SMS code receiving service, not a traditional bulk SMS platform. Its short-term numbers are advertised as covering 200+ countries and 3000+ services, with an option to choose “Not on the list.” The long-term rental description claims coverage in 18 countries and says numbers can be used for any service as well as financial/payment OTPs. However, the scraped rental page also shows 0 countries currently available, suggesting that actual inventory may change dynamically and should be checked on the order page.
Verification codes are displayed in the dashboard, and the registration flow is described as lightweight and visible to buyers.
The platform provides a REST JSON API with the base URL https://sms.sb/api/v1, using API Key authentication. It supports endpoints for balance, service lists, country lists, number purchases, order status, completing/canceling orders, service statistics, and more. For developers, these interfaces are sufficient for integrating automated verification workflows. However, the main content indicates that the long-term rental API is marked as Soon, meaning automated management of long-term numbers may not yet be fully available.
Pricing is based on purchasing numbers or rental periods, with long-term rentals ranging from 1 day to 12 months. However, the page does not disclose specific unit prices, refund rules for failed attempts, or bulk discounts.
On performance, the text only uses terms such as premium, fast, and high-performance, along with user-review claims like fast and available. It does not publish delivery rates, reception latency, SLA terms, or country-level success-rate data. As such, it should not be treated as an enterprise communications provider with a strong SLA.
Its advantages include broad coverage, non-VoIP support, and a straightforward API. It is suitable for individual developers, automation tools, temporary account verification, and users who need to keep receiving SMS on the same number over a longer period.
Its drawbacks are limited pricing transparency, inconsistent long-term inventory information, weak compliance disclosure, and descriptions such as No KYC and usability for financial/payment OTPs, which may create compliance review pressure for enterprise procurement.
The scraped text does not provide information on access from mainland China, payment methods, or localization support, so its access status is unknown.
If you need enterprise-grade compliance, stable delivery, and China-region support, you can compare it with Twilio Verify, Vonage Verify, and MessageBird. If your target is SMS code receiving services, alternatives include 5sim and SMS-Activate.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on sms.sb official site.
sms.sb is an 所罗门群岛 Comms & Email provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach sms.sb directly.