Area Code 956
Local Presence for Brownsville, Laredo, McAllen, Harlingen, and Edinburg
You can increase your connection rate up to 30% by dialing from a local number.
Local Presence by Tenfold gives you one-click access from your existing phone system to a local number in the US area code 956 and more than 200 others.
Reach out to customers in Brownsville, Laredo, McAllen, Harlingen, and Edinburg .
Source: Wikipedia