http://about.att.com/newsroom/credit_customer_calls_taiwan.html
Our thoughts are with the people of Taiwan and our customers who have friends and family there.

To help keep customers connected to those affected by the earthquake, AT&T will automatically issue credits and waive charges for calls placed and texts sent by our customers from the U.S. to Taiwan from February 6, 2018 to February 8, 2018.

This includes calls and texts from AT&T Postpaid Wireless and AT&T PREPAID customers and calls from AT&T landline customers.1

As with any emergency, text messaging is recommended due to the possibility of network congestion in the local area.

1: For AT&T Wireless and Landline, timing applies to customer’s local time zone. For AT&T Prepaid, applies to Eastern Time Zone.