ZIP Code Area 280XX
- ZIP Code Area 28001
- ZIP Code Area 28006
- ZIP Code Area 28007
- ZIP Code Area 28009
- ZIP Code Area 28012
- ZIP Code Area 28016
- ZIP Code Area 28017
- ZIP Code Area 28018
- ZIP Code Area 28019
- ZIP Code Area 28020
- ZIP Code Area 28021
- ZIP Code Area 28023
- ZIP Code Area 28025
- ZIP Code Area 28027
- ZIP Code Area 28031
- ZIP Code Area 28032
- ZIP Code Area 28033
- ZIP Code Area 28034
- ZIP Code Area 28036
- ZIP Code Area 28037
- ZIP Code Area 28039
- ZIP Code Area 28040
- ZIP Code Area 28043
- ZIP Code Area 28052
- ZIP Code Area 28054
- ZIP Code Area 28056
- ZIP Code Area 28071
- ZIP Code Area 28072
- ZIP Code Area 28073
- ZIP Code Area 28075
- ZIP Code Area 28076
- ZIP Code Area 28077
- ZIP Code Area 28078
- ZIP Code Area 28079
- ZIP Code Area 28080
- ZIP Code Area 28081
- ZIP Code Area 28083
- ZIP Code Area 28086
- ZIP Code Area 28088
- ZIP Code Area 28089
- ZIP Code Area 28090
- ZIP Code Area 28091
- ZIP Code Area 28092
- ZIP Code Area 28097
- ZIP Code Area 28098