The delta table consists of thirteen fields. Many of the fields in the table contain values used to create .cab files.
The following table outlines the delta table structure.
Table Structure
| Field name | Data type | Description |
| DeltaNum | Integer | Delta number |
| NewVersion | Integer | Next phone book version that will be published |
| AccessNumberId | Text | Number that corresponds to a POP entry |
| CountryNumber | Integer | Number that indexes a corresponding country in the Country table |
| AreaCode | Text | Telephone area code |
| AccesNumber | Text | Telephone number |
| MinimumSpeed | Integer | Lowest baud for modems |
| MaximumSpeed | Integer | Highest baud for modems |
| RegionId | Integer | Number that corresponds to a region in the region table |
| CityName | Text | Synonymous with POP name |
| ScriptId | Text | DUN entry name |
| FlipFactor | Integer | Not used for this version |
| Flags | Integer | Type of services available for POP |