All postcodes in EC3M 3
| Postcode | Place | Type |
|---|---|---|
| EC3M 3AG | City of London | large user |
| EC3M 3AW | City of London | large user |
| EC3M 3AZ | City of London | large user |
| EC3M 3BD | City of London | street |
| EC3M 3BE | City of London | street |
| EC3M 3BF | City of London | street |
| EC3M 3BY | City of London | street |
| EC3M 3JY | City of London | street |