A light on your line before it goes dark.
Line Lantern watches the validity of your prepaid plans and lights up a warning days before they expire — so calls and data never cut out in the dark.
// 3 days of validity left · example warning
Your lines, lit and watched.
Track every prepaid plan’s validity and get a warning before it runs out — no logins, no auto-charges.
Early warning
A warning days before expiry, plus one on the final day.
Validity countdown
A clear countdown for each line, from recharge to expiry.
Multiple lines
Personal, work, data-only, and hotspot lines side by side.
Setup takes a minute.
Add a line
Plan type, recharge date, and validity in days.
Set the warning
From 1 to 7 days before expiry. Default is 3.
Recharge officially
Top up via your carrier’s own app or store.


Works on any US network.
You enter the recharge date and validity, so Line Lantern works with any prepaid plan on any carrier — and is tied to none.

We warn; you recharge.
Line Lantern never touches your balance or line. You recharge through your carrier’s official channels when the warning lights up.
Line Lantern is free. No hidden switch.
- No fee, no card
- No carrier login
- STOP opts you out instantly
Keep your line lit.
Leave your name and number for a personal link within 2 business days. Reply STOP to opt out.
Wewatta Street, Denver
- Address
- 1601 Wewatta Street, Suite 500, Denver, CO 80202
Open in Google Maps - Phone
- +1 303-477-9150
- info@linelantern.lol
- Hours
- Weekdays, 9:00–17:00 MT