Unlimited Starter for 1 Line

Unlimited Starter runs $65.99/mo total for 1 line. The pricing breakdown above shows totals across all line tiers AT&T offers.

Unlimited Starter at 1 line costs more per line than 2+ line tiers because the multi-line discount doesn't apply. If you're a single user, compare against MVNOs (Mint, Visible, Cricket) which often beat single-line carrier pricing for similar coverage.

Yes — AT&T 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.

Hotspot allowances on Unlimited Starter 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.

AT&T 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.