Addison, IL Area Codes
Addison, Illinois (population 35,758) uses area codes 630 and 331.
Addison has no telephone exchange of its own in NANPA records; it is served by the Itasca exchange about 5.2 km away.
Carriers with Addison numbers
20 prefixes are assigned to the Itasca exchange: 5% mobile, 55% VoIP and cable, 40% landline.
| Carrier | Prefixes |
|---|---|
| AT&T (Illinois Bell) | 6 |
| Verizon Business (MCImetro) | 3 |
| AT&T (Teleport) | 3 |
| Onvoy (Sinch) | 3 |
| Lumen (Level 3) | 2 |
| Paetec Itel | 2 |
| T-Mobile | 1 |
Area codes used in Addison
| Area code | Prefixes serving Addison | Main carriers in this code |
|---|---|---|
| 630 | 17 | AT&T (Illinois Bell), AT&T Mobility, T-Mobile |
| 331 | 3 | Onvoy (Sinch), T-Mobile, Verizon Wireless |
Addison phone number prefixes
Numbers starting with these first six digits were originally assigned to the Itasca exchange.
630-228Lumen (Level 3)630-250AT&T (Illinois Bell)630-285AT&T (Illinois Bell)630-361T-Mobile630-438Verizon Business (MCImetro)630-467AT&T (Illinois Bell)630-625Paetec Itel630-626Lumen (Level 3)630-634AT&T (Teleport)630-647Verizon Business (MCImetro)630-735Verizon Business (MCImetro)630-760Paetec Itel630-773AT&T (Illinois Bell)630-775AT&T (Illinois Bell)630-875AT&T (Illinois Bell)630-919AT&T (Teleport)630-931AT&T (Teleport)331-224Onvoy (Sinch)331-263Onvoy (Sinch)331-340Onvoy (Sinch)
Nearby cities in area code 630
- Aurora
- Naperville
- Schaumburg
- Bolingbrook
- Wheaton
- Downers Grove
- Elmhurst
- Lombard
- Bartlett
- Oswego
- Carol Stream
- Streamwood
Questions
- What is the area code for Addison, IL?
- Addison uses 2 area codes: 630 and 331. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Addison in?
- Addison is in the Central time zone.