Virtual number for Michat verification

What Michat numbers do in practice

16.4M lines can take a Michat code at this moment, spread over 141 countries, and the cheapest of them opens at $0.16 on a Colombia line. Where a country sits in that spread is not arbitrary — it follows what the local carriers charge and how reliably they hand the message over, which is why the grid above prints those two side by side rather than ranking on cost alone.

When the first try comes back empty, another line in the same place rarely fixes it — another country usually does. A refusal decided at country level survives a change of carrier, and the reservation on a silent line lifts by itself, so walking down the 141 countries in the grid spends time and nothing else.

An answer from Michat saying the number is already registered means the line has been down this road before. Ranges come back into circulation carrying whatever was left on them, including somebody's abandoned account. Drop it and draw another — the reservation returns whole, and it is quicker than anything the app itself will let you do.