The statistic depicts the total telephone number porting activity since wireless porting started in the United States between 2003 and 2009. In December 2008, there were 2.8 million cases of telephone number porting in the U.S.
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Federal Communications Commission. (September 30, 2010). Total telephone number porting activity in the United States between 2003 and 2009 (in 1,000) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/188503/telephone-number-porting-in-the-united-states-since-2003/
Federal Communications Commission. "Total telephone number porting activity in the United States between 2003 and 2009 (in 1,000)." Chart. September 30, 2010. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/188503/telephone-number-porting-in-the-united-states-since-2003/
Federal Communications Commission. (2010). Total telephone number porting activity in the United States between 2003 and 2009 (in 1,000). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/188503/telephone-number-porting-in-the-united-states-since-2003/
Federal Communications Commission. "Total Telephone Number Porting Activity in The United States between 2003 and 2009 (in 1,000)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Sep 2010, /statistics/188503/telephone-number-porting-in-the-united-states-since-2003/
Federal Communications Commission, Total telephone number porting activity in the United States between 2003 and 2009 (in 1,000) ÌÇÐÄÆƽâ°æ, /statistics/188503/telephone-number-porting-in-the-united-states-since-2003/ (last visited August 01, 2026)
Total telephone number porting activity in the United States between 2003 and 2009 (in 1,000) [Graph], Federal Communications Commission, September 30, 2010. [Online]. Available: /statistics/188503/telephone-number-porting-in-the-united-states-since-2003/
