Derby Area Code
We have found 5 cities with names similar to "Derby". Below is the list of cities that match your search criteria.
Derby, CO area code
Derby, CO is served by area code 303. 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 303 is part of an overlay complex (303/720/983), 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 | Derby, CO |
| Area Code | 303 |
| Overlay Complex | 303/720/983 |
| State | Colorado |
| Country | United State |
| Time Zone | Mountain Standard Time (MST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 01-JAN-47 |
| In Service Date | 01-JAN-47 |
Derby, CT area code
Derby, CT is served by area code 203. 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 203 is part of an overlay complex (203/475), 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 | Derby, CT |
| Area Code | 203 |
| Overlay Complex | 203/475 |
| State | Connecticut |
| Country | United State |
| Time Zone | Eastern Standard Time (EST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 01-JAN-47 |
| In Service Date | 01-JAN-47 |
Derby, IA area code
Derby, IA is served by area code 641. This area code was initially assigned on 25-FEB-00 and has been in continuous service since 09-JUL-00, supporting the city's growing communication needs over the years.
| City Name | Derby, IA |
| Area Code | 641 |
| State | Iowa |
| Country | United State |
| Time Zone | Central Standard Time (CST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 25-FEB-00 |
| In Service Date | 09-JUL-00 |
Derby, KS area code
Derby, KS is served by area code 316. 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.
| City Name | Derby, KS |
| Area Code | 316 |
| State | Kansas |
| Country | United State |
| Time Zone | Central Standard Time (CST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 01-JAN-47 |
| In Service Date | 01-JAN-47 |
Derby, OH area code
There are 2 area codes serving the city of Derby. These area codes help facilitate efficient communication across different regions within the city.
Derby, OH is served by area code 614. 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 614 is part of an overlay complex (380/614), 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 | Derby, OH |
| Area Code | 614 |
| Overlay Complex | 380/614 |
| State | Ohio |
| Country | United State |
| Time Zone | Eastern Standard Time (EST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 01-JAN-47 |
| In Service Date | 01-JAN-47 |
Derby, OH is served by area code 740. This area code was initially assigned on 11-SEP-98 and has been in continuous service since 06-DEC-97, supporting the city's growing communication needs over the years.
The area code 740 is part of an overlay complex (220/740), 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 | Derby, OH |
| Area Code | 740 |
| Overlay Complex | 220/740 |
| State | Ohio |
| Country | United State |
| Time Zone | Eastern Standard Time (EST) |
| Code Type | General Purpose Code |
| In Service | Yes |
| Assignment Date | 11-SEP-98 |
| In Service Date | 06-DEC-97 |