Cingular posted a strong second quarter as the company continues to see gains from its merger with AT&T Wireless. While revenue increased only a modest 7%, profit spiked 267% to a record $540 million. Cingular remains the largest carrier in the US, with 57.3 million customers.

Key figures:

• Data revenue per user increased 38% to $5.77 ($6.60 for postpaid customers)
• 1.5 million net new customers
• Postpaid churn lowered to 1.7%, pre-paid 1.5%