Assigning phone numbers prior to making calls by leveraging esim cards to enable number portability

A system, comprising:

• one or more processors configured to:
• detect that a call to a particular phone number has been initiated;
• identify a temporary eSIM profile to be loaded into an eUICC based on the particular phone number in response to detection that the call to the particular phone number has been initiated;
• load the temporary eSIM profile into the eUICC;
• and
• place a call to the particular phone number using the temporary eSIM profile while the temporary eSIM profile is stored within the eUICC.

A method, comprising:

• detecting that a call to a particular phone number has been initiated using an electronic device;
• identifying a temporary eSIM profile to be loaded into an eUICC of the electronic device based on the particular phone number in response to detecting that the call to the particular phone number has been initiated;
• loading the temporary eSIM profile into the eUICC of the electronic device;
• and
• placing a call to the particular phone number using the temporary eSIM profile while the temporary eSIM profile is stored within the eUICC of the electronic device.