can i get someones ip by his phone number?

No, you cannot directly obtain someone's IP address just from their phone number. IP addresses are associated with devices on the internet, while phone numbers are associated with telecommunications networks. Accessing someone's IP address typically requires their consent or specific legal justifications, and doing so without permission is likely illegal and unethical. If you have legitimate reasons to need someone's IP address, it's best to communicate with the individual directly and ask for it.