| Number or Mask Entry Details Field Descriptions | |||
| Mask Character | Usage | Example Mask | Possible Search Results |
| Wildcard – ‘*’ | The number returned in the search results can include any digit in the position indicated by the ‘*’. | 888-456-78** | 888-456-7800 to 888-456-7899 |
| Repeat Wildcard – ‘&’ | The number returned in the search results can include the same digit in each of the positions indicated with the ‘&’. There must be at least 2 ‘&’ wildcard characters to provide matching digits. | 800-456-&23&
888-&&&-CARS | For the first pattern the possible values are 800-456-0230 800-456-1231 800-456-2232 800-456-3233 800-456-4234 800-456-5235 800-456-6236 800-456-7237 800-456-8238 800-456-9239
Similarly, the second pattern also returns 111, 222, 333, 444, 555, 666, 777, 888 and 999 in place of &&&. |
| Number: 0–9 | The number returned in the search results must include the specified digit(s) in the position(s) indicated. | ***-87*-**** | NPA-870-0000 to NPA-879-9999 Where the Numbering Plan Area (NPA) is a valid Toll-Free NPA. |