Home › Plans › T-Mobile › Prepaid Unlimited › 4 lines
T
T-Mobile · Family plan · 4 lines

Prepaid Unlimited for 4 Lines

At 4 lines, Prepaid Unlimited drops to $35.00/line — totaling $140.00/mo for the whole family.

Your family bill at 4 lines
Per month
$140.00
$35.00 × 4 lines
Per year
$1,680.00
Save $15.00/line vs 1 line
Best for
Family of 4, mixed devices
Prepaid Unlimited at 4 lines on the T-Mobile network. Unlimited data per line.
Line count (this page)
4 lines
Per line at 4 lines
$35.00/mo
Save $15.00/line
Total $140.00/mo · $1,680.00/yr

How Prepaid Unlimited changes with line count

1 line
2 lines
3 lines
4 lines(this page)
5 lines
Each tier links to its own page.
Family-plan review

Why 4 lines on Prepaid Unlimited

At 4 lines, Prepaid Unlimited offers $35.00/line. That's a saving of $15.00/line compared to a single line.

Coverage and perks remain consistent across all line counts on Prepaid Unlimited. Activation fees and taxes are not included in the headline price — check T-Mobile's website for the full bill estimate.

Pros at 4 lines
  • $15.00/line savings vs single line
  • T-Mobile network coverage
  • Unlimited data per line
Cons at 4 lines
  • Taxes and fees not included in headline price
  • Price increases if you add lines past 4

FAQ — Prepaid Unlimited for 4 lines

How much is Prepaid Unlimited for 4 lines?

Prepaid Unlimited runs $140.00/mo total for 4 lines — that's $35.00/line/mo after the multi-line discount. The pricing breakdown above shows totals across all line tiers T-Mobile offers.

Is 4 lines on Prepaid Unlimited a good deal?

4 lines typically lands Prepaid Unlimited closer to MVNO single-line pricing on a per-line basis. The break-even versus comparable MVNOs is usually around 3 lines; at 4 lines you're getting T-Mobile's full network footprint at MVNO-tier prices.

Can I add more lines to my Prepaid Unlimited plan later?

Yes — T-Mobile lets you add lines mid-plan with prorated billing. The per-line price drops automatically as you cross line-count thresholds (typically at 2, 3, and 4 lines). Removing lines is also straightforward with no ETF on no-contract plans.

Does Prepaid Unlimited include hotspot for 4 lines?

Hotspot allowances on Prepaid Unlimited are typically per-line (each line gets the published hotspot allowance). Check the plan-detail page for the exact GB; most premium unlimited plans include 25–60 GB per line at high speeds, dropping to slow speeds afterward.

What's the activation cost for 4 lines on Prepaid Unlimited?

T-Mobile typically charges a one-time activation fee per line ($25–$45/line is common). The pricing breakdown above does not include activation; budget for it on your first bill.

The verdict, & two little voices

Should you actually get Prepaid Unlimited for 4 lines?

The editor weighs in — flanked by the optimist on her shoulder and the cynic on the other.
UP
Our takeEditorial
T-Mobile prepaid unlimited at $50 with taxes in -- no hard cap, but congestion management puts prepaid behind postpaid customers when the tower is busy.
— UpPhone Team
The Optimist
“$50, taxes in, T-Mobile's real network, no contract -- about as clean as prepaid gets.”
— the angel on your shoulder
The Cynic
“'Network management' is polite carrier language for 'your video buffers when the stadium fills up.'”
— the devil in your other ear

Same plan, different line count

1 line
$50.00/mo
2 lines
$40.00/line
3 lines
$36.67/line
4 lines
$35.00/line
This page
5 lines
$34.00/line
Canonical
Compare Prepaid Unlimited (all line counts)