Let's say i have an interesting offer in one affiliate network.
Is there a tool where you can plug in the offer number/url, and it tells you which other affiliate networks run it?
You can't find by url / number but you can find by name on OfferVault
Also if you have accounts in different networks just give the url to your AM. He/she should finds it easier. And even if they don't have the offer, they can get it for you.
Also you can check your offer by name on https://affbank.com