02843 is the area code for the Newcastle (Co. Down) area in the Newry Mourne and Down region. The 2843 region includes places like: Dundrum, Castlewellan, Annalong, among others.
The majority of numbers utilizing the 02843 area code are regular Newcastle (Co. Down) 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 02843 telephone numbers:
| Region | Newry Mourne and Down (Northern Ireland) | |
| Number format | 02843 XXXXXX | |
| Local number digits | 6 |
| Location | Newcastle (Co. Down) | |
| International number format | +44 2843 XXXXXX | |
| Geo | 54.21804 ,-5.88979 |
Call cost: landline connection fee depends on your service provider.