Troy, IL Area Codes
Troy, Illinois (population 11,893) uses area codes 618 and 730.
Carriers with Troy numbers
5 prefixes are assigned to the Troy exchange: 20% mobile, 20% VoIP and cable, 60% landline.
| Carrier | Prefixes |
|---|---|
| Lumen (CenturyLink) | 1 |
| Lumen (Level 3) | 1 |
| AT&T (Illinois Bell) | 1 |
| Ton80 Communications | 1 |
| T-Mobile | 1 |
Area codes used in Troy
| Area code | Prefixes serving Troy | Main carriers in this code |
|---|---|---|
| 618 | 4 | Frontier, AT&T (Illinois Bell), AT&T Mobility |
| 730 | 1 | AT&T Mobility, Onvoy (Sinch), AT&T (Teleport) |
Troy phone number prefixes
Numbers starting with these first six digits were originally assigned to the Troy exchange.
618-414Lumen (CenturyLink)618-505Lumen (Level 3)618-667AT&T (Illinois Bell)618-886Ton80 Communications730-236T-Mobile
Nearby cities in area code 618
- Belleville
- Carpentersville
- O'Fallon
- Granite City
- Edwardsville
- Alton
- Collinsville
- Carbondale
- East St. Louis
- Godfrey
- Marion
- Cahokia Heights
Questions
- What is the area code for Troy, IL?
- Troy 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 Troy in?
- Troy is in the Central time zone.