AREA CODE
331
Area code 331 serves Illinois, United States. Central Time. In service since October 2007 as an overlay of 630.
Illinois
Area code 331 · United States · Central Time
- Serves
- Illinois, United States
- Time zone
- Central TimeAmerica/Chicago
- In service
- October 2007
- Overlay complex
- 331630
- Dialing
- (331) 555-0100·+1 331 555 0100
Parse it
Parse a number for validity, line type, and clean formats. Add deep=true for its numbering-plan state and time zone, included on every plan.
curl -s "https://api.parseapi.com/phone/3315550100?deep=true" \
-H "X-Api-Key: $PARSEAPI_KEY"