Landline RDD Sample
Sample Solutions provides a fully geocoded landline RDD Sample with removed business listings to the market research industry worldwide.
Mobile RDD Sample
Expand your reach with updated mobile RDD sample including provider information for wide-coverage in 140 countries and counting.
Dual-Frame RDD Sample
The mixed mode dual-frame approach combines both landline and mobile and is designed to reduce bias, increase the response rate and reach a larger audience.
Random Digit Dialing, commonly known as RDD, is a cost effective method for generating a representative sample of households with fixed telephones. This process allows us access to hard to reach areas where targeted sampling is tough. RDD is available using both landline and mobile contacts and enables us to generate numbers based on area, country or network provider.
Sample Solutions has developed a highly accurate RDD procedure that maintains the representative proportion of the corresponding populations.