No, your 2ndLine number doesn't expire as long as you maintain an active subscription.
Here's how to check your subscription status:
On iPhone/iPad/iPod:
1. Open the Settings app.
2. Tap on your Apple ID.
3. Tap on Subscriptions.
4. Find "2ndLine App" and tap on it.
5. You'll see your subscription status and renewal date.
Remember:
- If your subscription expires and you don't renew within 7 days, your number will be released and available for others to claim.
- Renewing your subscription on time ensures uninterrupted service and protects your number.