Area code 956 serves the southern tip of Texas along the U.S.–Mexico border, including cities like Laredo, McAllen, Brownsville, and Edinburg. Established in 1997 from a split with 210, it covers a region known for its binational culture, border trade, and large Hispanic population. Seven-digit dialing is still used for local calls. Area code 956 is deeply tied to the identity of the Rio Grande Valley, symbolizing the region’s bilingual, cross-border character and its growing influence in Texas commerce and politics.