According to the North American Numbering Plan, the area code 526 has yet to be assigned to an area in the US and has been reserved for future use.
526 is the country code for Mexico (52) and covers Band 6 (6). Band 6 includes Altata, Aguascalientes, Celaya, Choix, Culiacan, Durango, Fresnillo, Jalapa, Guamuchil, Zacalecas, La Paz, Baja California, Leon, Los Mochis, Poza, Rica, Queretaro,Quinones, Vaja Ca.s, Silao, Tamazunchale, Tamico, Tam, Tepehuanes and Zacatecas.
Check out this area code lookup for all US cities or use the area codes locator to find which city a phone area code belongs to at Allareacodes.com.
Beware of area code scams! Learn how fraudsters turn a call - lasting just a few minutes - for $20 or more at Aarp.org.
Tip! How to call Mexico from the USA/Canada? Visit Howtocallabroad.com to find out.