AT&T and Verizon are making calls and text messages to Japan free for their post-paid customers.
Both companies are waiving charges from the U.S. to Japan for their customers on contracts.
All four major U.S. wireless carriers are waiving fees for texting donations to relief organizations.
AT&T customers can automatically send $10 to the Red Cross Japanese relief efforts by text “redcross” on their phones to 90999.


Sprint says customers will not be charged for:
• Texting REDCROSS to “90999” to donate $10 on behalf of the American Red Cross;
• Texting TSUNAMI to “50555” to donate $10 on behalf of Convoy of Hope;
• Texting WAVE to “50555” to donate $10 on behalf of the World Relief Corp. of National Association of Evangelicals; and
• Texting JAPAN or QUAKE to 80888 to donate $10 on behalf of The Salvation Army.

The same goes for Verizon Wireless customers texting the above numbers, as well as to the following, to make a $10 donation:
• ADRA Relief, by texting SUPPORT to 85944;
• American Red Cross Relief, by texting REDCROSS to 90999;
• GlobalGiving, by texting JAPAN to 50555;
• International Medical Corps, by texting MED to 80888;
• Mercy Corps, by texting MERCY to 25383;
• Save the Children Federation, by texting JAPAN or TSUNAMI to 20222; and
• World Vision, by texting 4JAPAN or 4TSUNAMI to 20222.

T-Mobile also says it does not charge for text messages sent to mobile giving campaigns.