Lately, I’ve been thinking about SMS receiving (verification code) platforms again. Honestly, sometimes when registering an overseas account or testing an SMS interface, using a virtual number temporarily is quite convenient. I’ve stepped into plenty of pitfalls before—some platforms simply don’t receive the texts, some have delays that are way out of the ordinary, and later I finally figured out the pattern.

Basically, an SMS receiving platform rents virtual phone numbers to receive verification codes. It can protect your privacy and also means you don’t have to actually buy a brand-new SIM card. Among the few platforms I’ve used, SMS-Activate and 5SIM have been the most stable. You can usually receive the verification code within 10 seconds, and they cover many countries. Super Cloud SMS is also well optimized for US and China number ranges: US codes typically arrive in 10–30 seconds, and China codes can even come in 5–20 seconds.

If you mainly do testing in the domestic market, Xiaoniao SMS and Getsmscode are both good options. In particular, Xiaoniao SMS is well optimized for common e-commerce and social applications, and you can usually see the verification code within 5–15 seconds. Getsmscode is inexpensive and suitable for light use. However, note that some numbers are shared, which makes them easier to trigger risk controls—at that point, just switch to a different number range.

When using these free SMS receiving platforms, keep a few things in mind: Don’t expect to use the same virtual number long-term—privacy and security can’t be guaranteed. Some websites will directly flag virtual numbers as risky. It’s best to choose platforms with good reputations and high activity, not just ones that are cheap. From my experience, if you’re only testing an interface, picking any one is enough. But if you want stable registration on overseas websites, it’s better to have several numbers on hand so you can switch immediately when one becomes invalid. Many platforms support one-click number switching, which is especially useful.

Overall, these tools are quite helpful for testing or protecting privacy—just don’t use them to do anything illegal.