How can I spoof my number to a specific number?

Everywhere on the internet says to use SpoofCard. When I try to use it, I can only select from a list of numbers, not whatever I want. Any idea how I can spoof to a specific number? by HowToHack on Reddit.com How can I spoof my number to a specific number? - Everywhere on the internet says to use SpoofCard. When I try to use it, I can only select from a list of numbers, not whatever I want. Any idea how I can spoof to a specific number?

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