Im trying to ban universal cables, i have many items banned but the id i have isnt banning them, im using NEI for the IDS which has always worked so far it says my universal cable ids is 11456

Banning that id does nothing, is there some way i can get the real id? or is there a hidden id, thanks!

Also im trying to prevent placing and crafting them, is the placed block a different id?

Look for the "MultipartTransmitter" ID in the config.

i tried that as well and that id didnt seem to work either

Is this a "you need to add/subtract 256" (I forget which) issue? Transmitters aren't blocks, so their ids are offset by 256. It also means you can't ban the block without banning all multiparts.

If I may, why are you trying to ban the cables?
An alternative would be to remove their recipe with minetweaker.

they are already placed in the world, i have NoItem, it can ban crafting,placing,using, holding items. But using the id doesnt work, so it must be the wrong Id or something because i have plenty of things banned

well im not currently trying to remove them from the world, all i want is to ban crafting of them, which requires the id\

Example: - noitem.nocraft.(id).(optional data value)
This is using essentials, does this mean i wont be able to ban them..

Removing them from world by blockID doesn't work because they aren't blocks. When you place one, the block it's placed in is ForgeMultipart's block. If you wanted to ban them by blockID, you'd have to ban all of ForgeMultipart.

So is there nothing i can do? it came to the point i had to remove the mod because they were causing crashes so often