How is the correct operator determined automatically for each number?

You never need to manually specify the recipient operator. Our platform automatically performs:

1. Prefix analysis: identification of the operator from the number range allocated by the ANRT
2. Ported-number memory: a number may have changed operator following portability (mobility of the number). When a delivery failure confirmed by the network, or an operator check, contradicts the prefix, that number is remembered and its next sends are routed to its actual operator
3. Route selection: the message is sent over the local route suited to the identified operator, with automatic failover to another route if it fails

This mechanism limits failures on numbers ported from one operator to another.