Area code 331 prefixes in Illinois

Exchange Location
331-200 Cleveland
331-201 Rochester
331-202 Charleston
331-203 Austin
331-205 Raleigh
331-206 Clarksville
331-207 Madison
331-208 Cleveland
331-209 Santa Barbara
331-212 Philadelphia
331-213 Cedar Rapids
331-214 Cleveland
331-215 Lynbrook
331-216 Asheville
331-218 Phoenix
331-220 Binghamton
331-221 Wabash
331-225 Santa Ana
331-229 Los Angeles
331-234 Long Beach
331-240 Virginia Beach
331-245 Chico
331-248 Springfield
331-250 Peoria
331-251 Greenville
331-253 Cleveland
331-254 Tyler
331-256 Las Vegas
331-262 Dayton
331-281 Akron
331-301 Muncie
331-302 Worcester
331-303 Fort Lauderdale
331-304 Tucson
331-305 Detroit
331-307 Houston
331-308 Dallas
331-310 Peoria
331-318 Red Bay
331-330 Asheville
331-332 Lynbrook
331-333 Vancouver
331-425 Lawton
331-431 Lynn
331-444 Sioux Falls
331-452 Toms River
331-454 Richmond
331-456 Raleigh
331-457 Montgomery
331-462 Jackson
331-465 Syracuse
331-472 Boston
331-481 Atlanta
331-551 Charleston
331-575 Houston
331-625 Akron
331-642 New Haven
331-643 College Station
331-645 Grand Island
331-684 San Diego
331-701 Tallahassee
331-702 Fargo
331-703 Zanesville
331-704 Racine
331-725 Ann Arbor
331-777 Rochester
331-803 Lancaster
331-806 Springfield
331-808 Billings
331-814 New Orleans
331-825 Phoenix
331-826 Birmingham
331-888 New Orleans
331-903 Laredo
331-979 Lynn
331-980 Eau Claire
331-998 Lynn
331-999 Santa Ana