637 Area Code Phone Directory

Phone Prefixes in the 637 Area Code

(637) 2XX (637) 3XX (637) 4XX (637) 5XX (637) 6XX (637) 7XX (637) 8XX (637) 9XX

State: AE

Largest City in Area: APO

Area code (637) is in the state of AE. Below, are the major cities in the area code (637).

APO, AE (181)

DES MOINES, IA (59)

IOWA CITY, IA (52)

CEDAR RAPIDS, IA (48)

SAN ANTONIO, TX (45)

DAVENPORT, IA (44)

WEST DES MOINES, IA (40)

GRAND RAPIDS, MI (34)

APO, AP (33)

CHICAGO, IL (25)