Alton, IL Area Codes
Alton, Illinois (population 25,013) uses area codes 618 and 730.
Carriers with Alton numbers
17 prefixes are assigned to the Alton exchange: 29% mobile, 0% VoIP and cable, 71% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Illinois Bell) | 9 |
| AT&T Mobility | 4 |
| Paetec Itel | 2 |
| Nuso | 1 |
| T-Mobile | 1 |
Area codes used in Alton
| Area code | Prefixes serving Alton | Main carriers in this code |
|---|---|---|
| 618 | 15 | Frontier, AT&T (Illinois Bell), AT&T Mobility |
| 730 | 2 | AT&T Mobility, Onvoy (Sinch), AT&T (Teleport) |
Alton phone number prefixes
Numbers starting with these first six digits were originally assigned to the Alton exchange.
618-208Paetec Itel618-374AT&T (Illinois Bell)618-433AT&T (Illinois Bell)618-462AT&T (Illinois Bell)618-463AT&T (Illinois Bell)618-465AT&T (Illinois Bell)618-466AT&T (Illinois Bell)618-467AT&T (Illinois Bell)618-468AT&T (Illinois Bell)618-474AT&T (Illinois Bell)618-619Paetec Itel618-636Nuso618-796AT&T Mobility618-818AT&T Mobility618-908AT&T Mobility730-230T-Mobile730-265AT&T Mobility
Nearby cities in area code 618
- Belleville
- Carpentersville
- O'Fallon
- Granite City
- Edwardsville
- Collinsville
- Carbondale
- East St. Louis
- Godfrey
- Marion
- Cahokia Heights
- Fairview Heights
Questions
- What is the area code for Alton, IL?
- Alton uses 2 area codes: 618 and 730. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Alton in?
- Alton is in the Central time zone.