0121 is the area code for the Birmingham area in the City and Borough of Birmingham region. The 121 region includes places like: Hockley, Smethwick, among others.
The majority of numbers utilizing the 0121 area code are regular Birmingham landlines, however it should be noted that this might be misleading. Many businesses don’t provide a service that is connected or requires a physical address, but if they have a phone number, they have an area code.
Areas using 0121 telephone numbers:
| Region | City and Borough of Birmingham (England) | |
| Number format | 0121 XXX XXXX | |
| Local number digits | 7 |
| Location | Birmingham | |
| International number format | +44 121 XXX XXXX | |
| Geo | 52.48142 ,-1.89983 |
Call cost: landline connection fee depends on your service provider.