AT&T still the biggest ad spender in the wireless biz, iSpot.tv says

In April, the wireless industry spent an estimated $217.2 million, with AT&T (NYSE: T) leading the pack for TV spend across the industry. Cricket Wireless reached the top five ranking in April with 7.7 percent of the TV spend, surpassing March's fifth-place holder Straight Talk Wireless. All in all, 19 brands ran 102 spots 39,559 times for a total of 9.7 billion TV ad impressions.

FierceWireless has partnered with TV advertising measurement firm iSpot.tv to publish a monthly snapshot of the wireless industry's advertising spending and digital engagement. The results show the top five biggest spenders among wireless industry brands in April. You can read the full report here.