Postal sector IM99 3
- Po Box, Isle Of Man, IM99 3AF
- Po Box, Isle Of Man, IM99 3DJ
- Po Box, Isle Of Man, IM99 3DR
- Po Box, Isle Of Man, IM99 3EU
- Po Box, Isle Of Man, IM99 3JN
- Po Box, Isle Of Man, IM99 3LE
- Po Box, Isle Of Man, IM99 3NJ
- Douglas, Isle Of Man, IM99 3NP
- Po Box, Douglas, IM99 3NQ
- Po Box, Isle Of Man, IM99 3NZ
- Po Box, Isle Of Man, IM99 3PR
- Po Box, Isle Of Man, IM99 3PX
- Po Box, Isle Of Man, IM99 3QN
- Po Box, Isle Of Man, IM99 3QW
- Po Box, Isle Of Man, IM99 3SB
- Po Box, Isle Of Man, IM99 3UG
- Po Box, Isle Of Man, IM99 3UL
- Po Box, Isle Of Man, IM99 3YQ
- Po Box, Isle Of Man, IM99 3YR