AT&T customers with a regular need to dial numbers in Mexico are about to save some money. The wireless carrier announced today unlimited calling to our southern neighbor, available to anyone who adds the World Connect Value package to their postpaid plan. Folks who already have the $5 add-on will receive the benefit automatically.

This announcement comes after AT&T finished its $2.5 billion acquisition of lusacell, Mexico's third largest wireless provider, last week. Now the company is ready to capitalize on its investment, giving customers in America the ability to dial out to any fixed or mobile line in Mexico, the country its users call most frequently.

The lowest Verizon goes is one cent a minute following a $5 monthly access charge. Sprint offers 500 "free" minutes as part of its $5 Mexico & More package, but the carrier still charges you one cent per minute after as well. T-Mobile's $5 international package, while providing unlimited mobile-to-mobile minutes to over 30 countries, stops at 1,000 for calls placed to Mexico.

So for the time being, AT&T has the Mexico calling deal to beat.

AT&T Introduces Unlimited Calling to Mexico

Launches Its Best-Ever Value for International Calling to Mexico as part of World Connect Value Package

DALLAS, Jan. 20, 2015 – Following last week’s acquisition of Mexican wireless service provider Iusacell, AT&T* announced today that its international calling package, AT&T World Connectsm Value, now features unlimited calling from the U.S. to any number in Mexico, including mobile numbers, at no additional charge.** Current AT&T World Connect Value customers, both consumer and business, automatically receive the benefits.

Last year, AT&T introduced unlimited text, picture and video messaging to the world with Mobile Share Value*** and now Mobile Share Value customers can enjoy continued savings with unlimited calling to Mexico with the World Connect Value package.

“We’re always looking for opportunities to show our appreciation to our customers,” said David Christopher, chief marketing officer, AT&T Mobility. “Mexico is the most frequently dialed country among our wireless customers—and now they can call as much as they want with our enhanced World Connect Value package.”

World Connect Value package is $5 a month per line and offers unlimited calling to Mexico at no additional charge, as well as low-rate calling from the U.S. to over 225 countries.

Available to AT&T wireless postpaid customers, including those who have Wireless Home Services, AT&T World Connect Value package offers customers significant savings over pay-per-use rates plus the ease and convenience of using their wireless phone to directly call friends and family all over the world.

To learn more, visit att.com/worldconnect.