Postal sector BT1 3
- Princes Dock Street, Belfast, BT1 3AA
- Short Street, Belfast, BT1 3AF
- Pilot Place, Belfast, BT1 3AG
- Pilot Street, Belfast, BT1 3AH
- Corporation Square, Belfast, BT1 3AJ
- Corporation Square, Belfast, BT1 3AL
- Clarendon Road, Belfast, BT1 3BG
- Clarendon Dock, Belfast, BT1 3BH
- Laganbank Road, Belfast, BT1 3BN
- Lanyon Place, Belfast, BT1 3BT
- Corporation Street, Belfast, BT1 3DE
- Corporation Street, Belfast, BT1 3DH
- Princes Dock Street, Belfast, BT1 3DS
- Donegall Quay, Belfast, BT1 3EA
- Pilot Street, Belfast, BT1 3EP
- Albert Square, Belfast, BT1 3EQ
- Ulster Street, Belfast, BT1 3ES
- Custom House Square, Belfast, BT1 3ET
- Ulster Street, Belfast, BT1 3EW
- Ulster Street, Belfast, BT1 3EX
- Pilot Street, Belfast, BT1 3EZ
- Pilot Street, Belfast, BT1 3FB
- Clarendon Road, Belfast, BT1 3FD
- Donegall Quay, Belfast, BT1 3FE
- Queens Square, Belfast, BT1 3FF
- Queens Square, Belfast, BT1 3FG
- Princes Street, Belfast, BT1 3FP
- Victoria Street, Belfast, BT1 3GA
- Victoria Street, Belfast, BT1 3GE
- Waring Street, Belfast, BT1 3GF
- Victoria Street, Belfast, BT1 3GG
- Victoria Street, Belfast, BT1 3GH
- Victoria Street, Belfast, BT1 3GL
- Victoria Street, Belfast, BT1 3GN
- Ann Street, Belfast, BT1 3HH
- Musgrave Street, Belfast, BT1 3HX
- Chichester Street, Belfast, BT1 3JF
- May Street, Belfast, BT1 3JL
- Chichester Street, Belfast, BT1 3JQ
- Chichester Street, Belfast, BT1 3JY
- Oxford Street, Belfast, BT1 3LA
- Lanyon Quay, Belfast, BT1 3LG
- Oxford Street, Belfast, BT1 3LL
- Lanyon Place, Belfast, BT1 3LN
- Lanyon Place, Belfast, BT1 3LP
- Laganbank Road, Belfast, BT1 3LT
- Laganbank Road, Belfast, BT1 3LX
- Laganbank Road, Belfast, BT1 3LY
- Donegall Quay, Belfast, BT1 3NG
- Donegall Quay, Belfast, BT1 3NH
- Donegall Quay, Belfast, BT1 3NJ
- Donegall Quay, Belfast, BT1 3NL
- East Bridge Street, Belfast, BT1 3NQ
- East Bridge Street, Belfast, BT1 3NR
- East Bridge Street, Belfast, BT1 3PB
- Mays Meadow, Belfast, BT1 3PH
- Clarendon Road, Belfast, BT1 3PR
- St. Georges Harbour, Belfast, BT1 3SG
- Lanyon Place, Belfast, BT1 3WH