| Subject | English | Dutch |
| commun. | area code | interlokaal netnummer |
| comp., MS | area code | netnummer (A number that identifies each telephone service area in a country/region and is used as a dialing prefix) |
| commun. | area code | zonecode |
| commun. | area code | netnummer |
| commun. | area code | interlokaal kengetal |
| commun., IT | area code restriction | zonecodebeperking |
| commun. | area code routing | routering volgens netnummer |
| commun., IT | area/office code restriction | gebieds-en kantoorcodebeperking |
| commun. | location area code | netnummer locatie |
| commun. | numbering area code | code van nummeringsgebied |
| commun. | numbering plan area code | NPA-code |
| commun. | ocean area code | oceaangebiedscode |