About Illinois Area Code 331
The
331 area code includes Illinois cities Aurora, Bartlett, Batavia, Downers Grove, Elmhurst, Geneva, Glen Ellyn, Hinsdale, Itasca, Lemont, Lisle, Lombard, Naperville, Plano, Roselle, West Chicago, Yorkville.
Nearby area codes are
224,
312,
630,
708,
773,
779,
815 and
847.
Search for a phone number:
331 Area Code Exchanges 100-153:
331-100-xxxx 331-101-xxxx 331-102-xxxx 331-103-xxxx 331-104-xxxx 331-105-xxxx 331-106-xxxx 331-107-xxxx 331-108-xxxx 331-109-xxxx 331-110-xxxx 331-111-xxxx 331-112-xxxx 331-113-xxxx 331-114-xxxx 331-115-xxxx 331-116-xxxx 331-117-xxxx 331-118-xxxx 331-119-xxxx 331-120-xxxx 331-121-xxxx 331-122-xxxx 331-123-xxxx 331-124-xxxx 331-125-xxxx 331-126-xxxx 331-127-xxxx 331-128-xxxx 331-129-xxxx 331-130-xxxx 331-131-xxxx 331-132-xxxx 331-133-xxxx 331-134-xxxx 331-135-xxxx 331-136-xxxx 331-137-xxxx 331-138-xxxx 331-139-xxxx 331-140-xxxx 331-141-xxxx 331-142-xxxx 331-143-xxxx 331-144-xxxx 331-145-xxxx 331-146-xxxx 331-147-xxxx 331-148-xxxx 331-149-xxxx 331-150-xxxx 331-151-xxxx 331-152-xxxx 331-153-xxxx
