Join Date: May 2000
Location: Houston, TX, USA
Programs: UA Platinum, AA Lifetime Platinum, DL Platinum, Honors Diamond, Bonvoy Ambassador, Hertz Platinum
Posts: 8,179
No, US passport numbers are not the same when you renew them. The old passport number should still be in your old passport, which is returned to you when you apply for a new one. If you no longer have your old passport, the only obvious place to get it would be to ask the passport office.