Illinois Phone Prefixes in 331-4XX Area Code

Phone Prefixes in the 331-4XX Area Code

Prefix Usage Primary City
(331) 462 Landline Lombard
(331) 472 Wireless Naperville
(331) 431 Wireless Aurora
(331) 465 Wireless West Chicago
(331) 442 Wireless Saint Charles
(331) 452 Wireless Aurora
Prefix Usage Primary City
(331) 457 Wireless Naperville
(331) 422 Landline Saint Charles
(331) 481 Wireless Downers Grove
(331) 425 Wireless Aurora
(331) 456 Landline Roselle
(331) 444 Landline Naperville
(331) 454 Wireless Aurora

More 3XX Area Codes Phone Numbers