Postal sector GY1 4
- Guernsey, GY1 4AA
- Guernsey, GY1 4AJ
- Guernsey, GY1 4AN
- Guernsey, GY1 4AQ
- Guernsey, GY1 4AT
- Guernsey, GY1 4BF
- Guernsey, GY1 4BS
- Guernsey, GY1 4BZ
- Guernsey, GY1 4DD
- Guernsey, GY1 4EA
- Guernsey, GY1 4EE
- Guernsey, GY1 4EJ
- Guernsey, GY1 4ET
- Guernsey, GY1 4EU
- Guernsey, GY1 4EW
- Guernsey, GY1 4EY
- Guernsey, GY1 4HH
- Guernsey, GY1 4HL
- Guernsey, GY1 4HP
- Guernsey, GY1 4HQ
- Guernsey, GY1 4HR
- Guernsey, GY1 4HS
- Guernsey, GY1 4HW
- Guernsey, GY1 4JG
- Guernsey, GY1 4JH
- Guernsey, GY1 4LA
- Guernsey, GY1 4LH
- Guernsey, GY1 4LQ
- Guernsey, GY1 4LY
- Guernsey, GY1 4NA
- Guernsey, GY1 4ND
- Guernsey, GY1 4NL
- Guernsey, GY1 4NQ
- Guernsey, GY1 4NZ