Sending SMS : what is a "ported" number?

A ported number is a number which has a prefix relating to the original network, yet has been moved to a new network.

For example, an 07766 (vodafone) number may have been moved to the "orange" network.

Some SMS routes determine where to send the messages based on the prefix of the number. In such cases, the message would be incorrectly routed.

Most of our messages are routed using an HLR database (this is a "home location register") which is a database of mobile numbers and destination networks.

However, the HLR can take some time to get new information on newly ported numbers. Sometimes we have to change the routing on your account in order to reach newly ported numbers.

If you are experiencing problems sending to ported numbers, please let us know

More help available from technicians via our online support system.