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Cahokia Heights, IL Area Codes
Cahokia Heights, Illinois (population 16,874) uses area codes 618 and 730.
Cahokia Heights has no telephone exchange of its own in NANPA records; it is served by the East St. Louis exchange about 5.4 km away.
Carriers with Cahokia Heights numbers
16 prefixes are assigned to the East St. Louis exchange: 6% mobile, 13% VoIP and cable, 81% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Illinois Bell) | 10 |
| Paetec Itel | 1 |
| Metropcs | 1 |
| Boost Subscriberco L.L.C. | 1 |
| Charter Ip Enabled Services | 1 |
| T-Mobile | 1 |
| Onvoy (Sinch) | 1 |
Area codes used in Cahokia Heights
| Area code | Prefixes serving Cahokia Heights | Main carriers in this code |
|---|---|---|
| 618 | 14 | Frontier, AT&T (Illinois Bell), AT&T Mobility |
| 730 | 2 | AT&T Mobility, Onvoy (Sinch), AT&T (Teleport) |
Cahokia Heights phone number prefixes
Numbers starting with these first six digits were originally assigned to the East St. Louis exchange.
618-215Paetec Itel618-261AT&T (Illinois Bell)618-271AT&T (Illinois Bell)618-274AT&T (Illinois Bell)618-332AT&T (Illinois Bell)618-337AT&T (Illinois Bell)618-482AT&T (Illinois Bell)618-515Metropcs618-583AT&T (Illinois Bell)618-646AT&T (Illinois Bell)618-815Boost Subscriberco L.L.C.618-857Charter Ip Enabled Services618-874AT&T (Illinois Bell)618-875AT&T (Illinois Bell)730-231T-Mobile730-292Onvoy (Sinch)
Nearby cities in area code 618
- Belleville
- Carpentersville
- O'Fallon
- Granite City
- Edwardsville
- Alton
- Collinsville
- Carbondale
- East St. Louis
- Godfrey
- Marion
- Fairview Heights
Questions
- What is the area code for Cahokia Heights, IL?
- Cahokia Heights 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 Cahokia Heights in?
- Cahokia Heights is in the Central time zone.