T-Mobile USA has reported fourth quarter 2008 net subscriber additions of 621,000, down from 670,000 in the third quarter of 2008 and 951,000 in the fourth quarter of 2007. The slowdown in additions was compounded by an increase in churn to 3.3% in the three months to 31 December 2008, compared to 2.8% in the same period twelve months previously. Post-paid churn was 2.4% in the quarter, up from 1.8% in the final quarter of 2007. For the full year 2008 T-Mobile added over 4.07 million net new customers, including 1.13 million from its February 2008 acquisition of SunCom Wireless, to end the year with 32.8 million subscribers. Contract customers comprised 82% of T-Mobile’s customer base at the end of 2008, compared to 83% in the third quarter of 2008 and fourth quarter of 2007.