Area code for carnar point city in new jersey

I think there may be a mistake here!

Carnarvon is a town in Wales, UK, not New Jersey, USA. Carnarvon is a small town on the island of Anglesey, off the north coast of Wales.

If you're looking for the area code for a city in New Jersey, USA, could you please provide the name of the city? I'd be happy to help you with that!