Does blocking a phone number in iMessage on macOS also block on iphone?

My address book is iCloud and I use imessage on mac and iphone. If I block a contact using the drop down menu as shown, will that also block them on my iPhone or is the blocking device specific? https://preview.redd.it/hodmj4mtiq6e1.png?width=1223&format=png&auto=webp&s=9a270481023ae6e77413acea7a07cd308c6dda72