All postcodes in EC4Y 9
| Postcode | Place | Type |
|---|---|---|
| EC4Y 9AA | City of London | street |
| EC4Y 9AD | City of London | street |
| EC4Y 9AH | City of London | street |
| EC4Y 9AJ | City of London | street |
| EC4Y 9AL | City of London | street |
| EC4Y 9AP | City of London | street |
| EC4Y 9AR | City of London | street |
| EC4Y 9AT | City of London | large user |
| EC4Y 9AU | City of London | street |
| EC4Y 9AY | City of London | street |
| EC4Y 9BB | City of London | street |
| EC4Y 9BE | City of Westminster | street |
| EC4Y 9BJ | City of London | street |
| EC4Y 9BL | City of London | street |
| EC4Y 9BS | City of Westminster | street |
| EC4Y 9BT | City of London | large user |
| EC4Y 9BU | City of London | street |
| EC4Y 9BW | City of Westminster | street |
| EC4Y 9BY | City of London | street |
| EC4Y 9DA | City of London | street |
| EC4Y 9DB | City of London | street |
| EC4Y 9DH | City of Westminster | street |