227XX
- Postal code 22700
- Postal code 22710
- Postal code 22711
- Postal code 22712
- Postal code 22713
- Postal code 22714
- Postal code 22715
- Postal code 22720
- Postal code 22728
- Postal code 22729
- Postal code 22730
- Postal code 22731
- Postal code 22732
- Postal code 22740
- Postal code 22750
- Postal code 22751
- Postal code 22752
- Postal code 22753
- Postal code 22760
- Postal code 22761
- Postal code 22770
- Postal code 22771
- Postal code 22772
- Postal code 22773
- Postal code 22790
- Postal code 22791
- Postal code 22792