Signal has profiles nowadays that can be used to connect with people without sharing phone numbers. The latter are only used for signup and discarded immediately after.

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pmontra 8 hours ago | parent | next [-]

I don't know how Signal works and I never used it, but could I signup with a phone number and keep using it with another number, on the same phone?

	▲	alias_neo 8 hours ago \| parent [-]
		Yes. The phone number is just for activation, once activated, you can swap the SIM and carry on. Or have the SIM that receives the activation text in another phone, or be virtual, or whatever.

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reactordev 8 hours ago | parent | prev | next [-]

I doubt they are discarded when push notifications exist

	▲	Krizzu 6 hours ago \| parent [-]
		push notifications are not related to phone number, but rather to a randomly generated token in app.

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pseudalopex 2 hours ago | parent | prev [-]

Another comment contradicted this.[1]

[1] https://news.ycombinator.com/item?id=46959019