All postcodes in EC3N 3
| Postcode | Place | Type |
|---|---|---|
| EC3N 3AA | City of London | street |
| EC3N 3AE | City of London | street |
| EC3N 3AJ | City of London | street |
| EC3N 3AX | City of London | street |
| EC3N 3DQ | City of London | street |
| EC3N 3DS | City of London | street |
| EC3N 3ED | City of London | street |
| EC3N 3EL | City of London | street |