This subscription-based online service allows you to gather information on up to 100 telephone numbers per session and provides added features including historical porting data and the ability to search by individual numbers or ranges.
This free, telephone-based service helps you identify the current service provider information for a given telephone number that has been ported, up to 20 telephone numbers at a time.
To learn more about which service will meet your needs, view the ELEP/IVR comparison chart.