DirectoryExpress
DirectoryExpressSM is the suite of applications used to access VoltDelta’s directory assistance (DA) database. DirectoryExpress is the most-used and highest quality national telephone listing database with over 150 million telco-freshSM US, Canadian and Puerto Rican listings, compiled and managed by VoltDelta.
- 99.7% of all listings are sourced directly from over 2,700 telephone companies
- Millions of database updates processed on a daily basis, seven days a week
- Semi-annual quality verifications by an independent audit firm show accuracy of 99.6%
- Available in multiple switching environments
- Extensive standardization of data elements
- Used for both operator and automation searches
- Geo-coded listings supports location-based services
- Advanced search algorithms increase speed and “findability” of listings.