Willowbrook Area Code
We have found 3 cities with names similar to "Willowbrook". Below is the list of cities that match your search criteria.
Willowbrook, CA area code
There are 2 area codes serving the city of Willowbrook. These area codes help facilitate efficient communication across different regions within the city.
Willowbrook, CA is served by area code 213. This area code was initially assigned on 01-JAN-47 and has been in continuous service since 01-JAN-47, supporting the city's growing communication needs over the years.
The area code 213 is part of an overlay complex (213/323/738), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.
| City Name | Willowbrook, CA |
| Area Code | 213 |
| Overlay Complex | 213/323/738 |
| State | California |
| Country | United State |
| Time Zone | Pacific Standard Time (PST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 01-JAN-47 |
| In Service Date | 01-JAN-47 |
Willowbrook, CA is served by area code 310. This area code was initially assigned on 31-AUG-90 and has been in continuous service since 02-NOV-91, supporting the city's growing communication needs over the years.
The area code 310 is part of an overlay complex (310/424), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.
| City Name | Willowbrook, CA |
| Area Code | 310 |
| Overlay Complex | 310/424 |
| State | California |
| Country | United State |
| Time Zone | Pacific Standard Time (PST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 31-AUG-90 |
| In Service Date | 02-NOV-91 |
Willowbrook, IL area code
There are 2 area codes serving the city of Willowbrook. These area codes help facilitate efficient communication across different regions within the city.
Willowbrook, IL is served by area code 630. This area code was initially assigned on 09-AUG-94 and has been in continuous service since 03-AUG-96, supporting the city's growing communication needs over the years.
The area code 630 is part of an overlay complex (331/630), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.
| City Name | Willowbrook, IL |
| Area Code | 630 |
| Overlay Complex | 331/630 |
| State | Illinois |
| Country | United State |
| Time Zone | Central Standard Time (CST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 09-AUG-94 |
| In Service Date | 03-AUG-96 |
Willowbrook, IL is served by area code 708. This area code was initially assigned on 04-APR-88 and has been in continuous service since 11-NOV-89, supporting the city's growing communication needs over the years.
The area code 708 is part of an overlay complex (464/708), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.
| City Name | Willowbrook, IL |
| Area Code | 708 |
| Overlay Complex | 464/708 |
| State | Illinois |
| Country | United State |
| Time Zone | Central Standard Time (CST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 04-APR-88 |
| In Service Date | 11-NOV-89 |
Willowbrook, KS area code
Willowbrook, KS is served by area code 620. This area code was initially assigned on 14-SEP-00 and has been in continuous service since 03-FEB-01, supporting the city's growing communication needs over the years.
| City Name | Willowbrook, KS |
| Area Code | 620 |
| State | Kansas |
| Country | United State |
| Time Zone | Central/Mountain Time |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 14-SEP-00 |
| In Service Date | 03-FEB-01 |
