VSim offers temporary virtual numbers for SMS verification, providing a practical solution for users who need additional accounts or prefer not to use their real numbers on social networks, marketplaces, and other online services. While VSim usually delivers SMS without issues, users occasionally experience SMS non-delivery. This post explores the main reasons for these failures and offers actionable solutions to resolve them.
SMS delivery issues typically fall into two categories: service-side issues and supplier-related issues.
Sometimes, SMS delivery issues stem from temporary service-side errors. In most cases, retrying your request resolves the problem. However, if multiple requests are sent from a single IP address, certain security algorithms may detect this as bot activity, which can lead to blocking SMS delivery. These algorithms are designed to prevent spammy or automated registrations, which are often flagged when specialized software or high-frequency IP addresses are detected.
To provide virtual numbers globally, VSim partners with suppliers worldwide. Occasionally, a supplier may withdraw a number too soon or face technical issues, resulting in SMS non-delivery. While VSim thoroughly vets suppliers, monitoring their services in real-time can be challenging due to the sheer volume of numbers and regions.
Quick Tip: As VSim functions as an intermediary between providers and users, direct service issues are rare. For persistent problems, the VSim support team is available to help troubleshoot.
If you’re facing SMS delivery issues, the following tips can help improve your chances of successful SMS verification.
Use a Proxy or VPN Aligned with Your Number’s Location
Matching the geolocation of your proxy or VPN to the country of your virtual number can reduce the likelihood of blocks.
Clear Cookies & Use Incognito Mode
Clearing browser cookies and using a private (incognito) browsing window helps avoid blocks associated with cached data, reducing detection of multiple attempts.
Try a Different Device or Use an Emulator
Switching to another device or using a mobile emulator can sometimes bypass device-specific restrictions.
Pro Tip: If you’re frequently using virtual numbers, consider opting for premium proxies or VPNs, as free options are more commonly blacklisted, affecting SMS delivery.
VSim does not offer tools to pinpoint the exact cause of SMS delivery failure. For high-volume registrations, ensure that your proxy or VPN is reliable, as free options can lead to quick blacklisting. When registering individual accounts, following the above tips (like using incognito mode and matching regions) significantly improves success rates.
If you’ve tried all troubleshooting methods but still face issues, VSim’s support team is available through multiple channels.
Telegram Support
Social Media
Email
For detailed inquiries, reach out via info@VSim.app.
Quick Tip: Telegram is typically the fastest way to reach support, but feel free to use whichever contact method works best for you.
In summary, SMS delivery issues can occur at different stages, particularly if a service detects mass registration attempts or if there’s a supplier-side issue. To enhance the likelihood of successful SMS delivery, try using a VPN or proxy aligned with the number’s location, clear your browser’s cache, and select the right country or operator. Should issues persist, VSim’s support team is there to assist.
Following these steps should help you navigate SMS delivery challenges on VSim effectively.
