New Telephone Area Codes
These area codes went into effect on November 17, 2001
| City |
State |
Area Code |
| Aguascalientes |
Ags. |
449 |
| Ajijic |
Jal. |
376 |
| Celaya |
Gto |
461 |
| Chapala |
Jal. |
376 |
| Comonfort |
Gto. |
412 |
| Dolores Hidalgo |
Gto. |
418 |
| Guadalajara |
Jal. |
33 |
| Guanajuato |
Gto. |
473 |
| Irapuato |
Gto. |
462 |
| Lagos de Moreno |
Jal. |
474 |
| León |
Gto. |
477 |
| Mexico City |
D.F. |
55 |
| Monterrey |
N.L. |
81 |
| Morelia |
Mich. |
443 |
| Pachuca |
Hgo. |
771 |
| Puebla |
Pue. |
222 |
| Puerto Vallarta |
Jal. |
322 |
| Querétaro |
Qro. |
442 |
| San Felipe |
Gto. |
428 |
| San Juan del Rio |
|
437 |
| San Luis Potosi |
S.L.P. |
444 |
| San Miguel de Allende |
Gto. |
415 |
The three largest cities have only two numbers in their area
codes, all the rest have three.