| Postcode | Country | County | Type | Status |
|---|---|---|---|---|
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated January 2018 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated July 2018 | |
| Wales | (pseudo) Wales | Large | Terminated March 2018 | |
| Wales | (pseudo) Wales | Large | Terminated November 2018 | |
| Wales | (pseudo) Wales | Large | Terminated May 2019 | |
| Wales | (pseudo) Wales | Large | Terminated May 2019 | |
| Wales | (pseudo) Wales | Large | Terminated August 2021 | |
| Wales | (pseudo) Wales | Large | Terminated September 2020 | |
| Wales | (pseudo) Wales | Large | Terminated April 2019 | |
| Wales | (pseudo) Wales | Large | Terminated April 2019 | |
| Wales | (pseudo) Wales | Large | Terminated April 2019 | |
| Wales | (pseudo) Wales | Large | Terminated July 2019 | |
| Wales | (pseudo) Wales | Large | Terminated February 2021 | |
| Wales | (pseudo) Wales | Large | Terminated September 2019 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated October 2020 | |
| Wales | (pseudo) Wales | Large | ||
| Wales | (pseudo) Wales | Large | Terminated November 2021 |