Coverage & Countries

How coverage works on SMSX

SMSX is a public directory of temporary phone numbers and the SMS activity they receive. "Coverage" describes which countries and services currently have live numbers you can browse — and, just as importantly, why that coverage changes throughout the day. Because every number here is shared and public, coverage is never a fixed list. It is a live snapshot of what happens to be online right now.

This page explains how to read coverage, how to choose a route sensibly, and where the real limits are. If you just want to start looking, open the Public Numbers page and use the country and service filters.

Countries and regions

Numbers are grouped by the country that issued them, shown in international format with the correct country code. The set of available countries is driven entirely by which public routes are active, so it expands and contracts naturally. A country that has several numbers online in the morning may have none by the evening, and vice versa.

To see what is available in a specific region, use the country filter on the Public Numbers page. The list you see there is always the current truth — it is more reliable than any static count, precisely because coverage is dynamic.

Services and platforms

Alongside countries, numbers are organised by the service or platform they are commonly tested against. The Services directory lets you compare which platforms currently have live inventory and how recent delivery activity looks. Many well-known platforms actively block shared numbers, so a service appearing in the directory means numbers exist for it — not that every message will always be delivered.

How to choose a route

• Start from the service, then the country. Pick the platform you want to observe first, then narrow to a country that has active numbers for it.
• Read the status badge. Prefer numbers marked available over those marked limited or offline.
• Check recent activity. A number that has received messages recently is more likely to be working than one that has been idle.
• Have a backup. If one number does not receive your code, switch to another for the same service or try a different country. There is no penalty for switching.

Why availability changes

Public numbers rotate constantly. Routes go offline, get overloaded, or are retired without notice, and new ones appear. This is normal for shared infrastructure and is the reason we show live status and recent-activity indicators instead of promising permanent coverage. Treat every figure on the site as a best-effort indicator that can change at any moment.

Limitations you should expect

• No guaranteed delivery. Because numbers are shared and many services block them, some codes will never arrive. That is expected, not a fault.
• No private use. Anyone can read messages sent to a public number. Never route a real, personal, or financial account through one.
• Content is third-party. Messages originate from external senders and may be inaccurate or unsafe. See our Disclaimer.

Privacy and safety while using coverage

Public coverage is a research and testing convenience, not a private inbox. Do not submit personal data to a listed number, and if you ever see a message that exposes someone's private information, report it through Report an Issue or request takedown via Content Removal Requests. Our Safety & Reporting Center explains safe use in more depth.

Related pages

• Public Numbers — the live directory, filtered by country and service.
• Services — compare platforms and their current inventory.
• Help Center — step-by-step guidance for receiving a code.