All postcodes in EC3M 1
| Postcode | Place | Type |
|---|---|---|
| EC3M 1AA | City of London | street |
| EC3M 1AE | City of London | street |
| EC3M 1AG | City of London | street |
| EC3M 1AJ | City of London | street |
| EC3M 1BD | City of London | street |
| EC3M 1BN | City of London | street |
| EC3M 1BU | City of London | street |
| EC3M 1DE | City of London | street |
| EC3M 1DT | City of London | street |
| EC3M 1EB | City of London | street |
| EC3M 1EU | City of London | street |
| EC3M 1HD | City of London | street |
| EC3M 1HS | City of London | street |
| EC3M 1JA | City of London | street |
| EC3M 1JT | City of London | large user |
| EC3M 1NP | City of London | large user |