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T-Mobile · Family plan · 4 lines

Prepaid Unlimited Plus for 4 Lines

At 4 lines, Prepaid Unlimited Plus drops to $38.75/line — totaling $155.00/mo for the whole family.

Your family bill at 4 lines
Per month
$155.00
$38.75 × 4 lines
Per year
$1,860.00
Save $26.25/line vs 1 line
Best for
Family of 4, mixed devices
Prepaid Unlimited Plus at 4 lines on the T-Mobile network. Unlimited data per line.
Line count (this page)
4 lines
Per line at 4 lines
$38.75/mo
Save $26.25/line
Total $155.00/mo · $1,860.00/yr

How Prepaid Unlimited Plus 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 Plus

At 4 lines, Prepaid Unlimited Plus offers $38.75/line. That's a saving of $26.25/line compared to a single line.

Coverage and perks remain consistent across all line counts on Prepaid Unlimited Plus. 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
  • $26.25/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 Plus for 4 lines

How much is Prepaid Unlimited Plus for 4 lines?

Prepaid Unlimited Plus runs $155.00/mo total for 4 lines — that's $38.75/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 Plus a good deal?

4 lines typically lands Prepaid Unlimited Plus 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 Plus 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 Plus include hotspot for 4 lines?

Hotspot allowances on Prepaid Unlimited Plus 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 Plus?

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 Plus 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's top prepaid tier at $65 is essentially the 'I go to Canada or Mexico regularly' plan -- the international access is the only thing that separates it from the $50 version.
— UpPhone Team
The Optimist
“Cross into Canada or Mexico and your phone just works -- no extra plan, no international day pass, no surprise bill.”
— the angel on your shoulder
The Cynic
“$65 prepaid with no guaranteed hotspot and network management: pay a little more and get an actual postpaid plan.”
— the devil in your other ear

Same plan, different line count

1 line
$65.00/mo
2 lines
$47.50/line
3 lines
$41.67/line
4 lines
$38.75/line
This page
5 lines
$37.00/line
Canonical
Compare Prepaid Unlimited Plus (all line counts)