Once a line exceeds your monthly data useage threshold (which varies based on the data option you choose for the line), that line will experience reduced speeds.* Browsing speeds get reduced to a maximum of 1.5 Mbps download/750 Kbps upload; you might notice some lag when doing things that require a lot of data, like streaming video.

Once the next billing cycle starts, the data counter resets and the line will be back to full speed.

If the slower data is getting you down, connect to WiFi, where data is free and doesn't count toward your data usage.

*Please note that at this time, C-Band spectrum and Ultra Wideband data use don't contribute towards monthly data usage thresholds.

When Network Traffic Is Congested

You may also experience temporarily slower data speeds when the network is experiencing high levels of network congestion. This is most often based on where you are physically.

For example, if you're in a crowded stadium, videos might buffer or pages could take a little longer to load. In practice, the vast majority of customers probably won't notice a difference in the network's performance. We manage the flow of data similarly to how other major U.S. carriers do. See more details about this.

By the Gig includes higher-quality cellular service in times of network congestion.

If you're on Unlimited, you've got some options for avoiding this temporary slowdown:

Connect to WiFi.
Upgrade to Unlimited Premium for an additional $20/line per month.