Bring Your Own Phone or Device | UScellular. UNLIMITED DATA $29 /MO. per line ONE LINE. Even just one line. The best deal in wireless. Pricing is per line/month after Auto Pay/Paperless Billing discount. Data on the plan may be temporarily slowed in times of congestion and may be slower than other traffic. Offer valid in WA, CA, OR, TX, OK, and. At&t has the edge for multiple lines, but you can find. Phone reps are a little better but not great at answering questions. Source: wellconnectedmom.com. Straight talk partners with the big 4 networks, lets you bring your own phone and is available at walmart. On an iphone go to settings > cellular. Source: www.droid-life.com.