| Action | Code | Name | Label | Hierarchy | Part Of | Version | Valid From | Valid Until |
|---|---|---|---|---|---|---|---|---|
| 0173 | Oldenzaal | Oldenzaal | 2 Municipality [NL] | Overijssel | Active | 23/07/2020 | — | |
| 1773 | Olst-Wijhe | Olst-Wijhe | 2 Municipality [NL] | Overijssel | Active | 23/07/2020 | — | |
| 0175 | Ommen | Ommen | 2 Municipality [NL] | Overijssel | Active | 23/07/2020 | — | |
| 1586 | Oost Gelre | Oost Gelre | 2 Municipality [NL] | Gelderland | Active | 23/07/2020 | — | |
| 0826 | Oosterhout | Oosterhout | 2 Municipality [NL] | Noord-Brabant | Active | 23/07/2020 | — | |
| 0085 | Ooststellingwerf | Ooststellingwerf | 2 Municipality [NL] | Friesland | Active | 23/07/2020 | — | |
| 0431 | Oostzaan | Oostzaan | 2 Municipality [NL] | Noord-Holland | Active | 23/07/2020 | — | |
| 0432 | Opmeer | Opmeer | 2 Municipality [NL] | Noord-Holland | Active | 23/07/2020 | — | |
| 0086 | Opsterland | Opsterland | 2 Municipality [NL] | Friesland | Active | 23/07/2020 | — | |
| 0828 | Oss | Oss | 2 Municipality [NL] | Noord-Brabant | Active | 23/07/2020 | — |