Of course.
You need to order a new 48 SIM, activate it and port your number over.
See here:
Order a new SIM: https://community.48.ie/t5/The-Knowledgebase/Getting-Started-Order-Your-FREE-48-SIM/ta-p/53098
Activate SIM: https://community.48.ie/t5/The-Knowledgebase/Getting-Started-How-to-Activate-your-48-SIM/ta-p/53099
Port your number: https://community.48.ie/t5/The-Knowledgebase/Getting-Started-Move-Your-Number/ta-p/53100
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