* File format off the number portability data * The number portability data consists only from the number or number block in the internation format followed by an semi-colon and the carrier identity. Each entry must be in a separate line. Format [0-9]{n,m}; [0-9][0-9][0-9] For example: 495041748;012 493687413;009 The meaning of this entry is that the first number or block 495041748 belongs to the carrier 12, the second to the carrier 9. * File format of the carrier name file * Each carrier id and name must be in a separate line. Format: D[0-9][0-9][0-9] For example: D001 Deutsche Telekom AG, Bonn D012 BT Germany GmbH & Co. OHG This means that the 495041748 block belongs to British Telecom Germany.