How many sites from each region we first detected using CallKeeper at specific date periods.
Get a list of 3,677 websites using CallKeeper which includes location information, hosting data, contact details, 1,927 currently live websites
and an additional 339 domains that redirect to sites in this list. 1,750 sites that used this technology previously and 80 websites in the United States currently using CallKeeper.
Distribution of locations of all CallKeeper customers we've ever tracked.