Skip Navigation


International Journal of Public Opinion Research Advance Access originally published online on October 12, 2007
International Journal of Public Opinion Research 2007 19(4):504-511; doi:10.1093/ijpor/edm023
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
19/4/504    most recent
edm023v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Link, M. W.
Right arrow Articles by Mokdad, A. H.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2007. Published by Oxford University Press on behalf of The World Association for Public Opinion Research. All rights reserved.

Telephone Number Portability and the Prevalence of Cell Phone Numbers in Random Digit-Dialed Telephone Survey Samples

Michael W. Link, Machell Town and Ali H. Mokdad

Address correspondence to Michael W. Link, Nielsen Media Research, 1145 Sanctuary Parkway, Suite 100, Alpharetta, GA 30004, Michael.Link@Nielsen.com

The first 150 words of the full text of this article appear below.

Telephone number portability is a feature of circuit switch telecommunication networks that allows people to ‘port’ (i.e., permanently move or transfer) a telephone number from a landline to a wireless service, between two wireless services or, less frequently, from a wireless to a landline service. It was introduced in the United States as a means of improving competition among telecommunications companies and offering customers greater flexibility in telecommunications services (FCC, 2006). The problem for survey research is that telephone numbers thought to be landline numbers within a particular geographic area are sometimes later found to be associated with cell phones, which is problematic for more traditional random digit-dialed (RDD) telephone surveys that tend to exclude cell phone numbers.

Number portability is occurring globally, with regulations varying across countries. Singapore was the first to introduce number portability in 1997. Number portability is also provided in the European Union, as well . . . [Full Text of this Article]


   METHODS
 

   FINDINGS
 

   DISCUSSION
 

Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?