The “Un-carrier” might not have the strongest mobile network out there but it’s nonetheless done an impressive job of improving its service despite having more limited resources than Verizon and AT&T. Computerworld has posted the results of a big new survey of wireless subscribers in the United States that has found T-Mobile customers’ satisfaction with their carrier has surged over the last year.

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The survey found that 54% of T-Mobile customers were satisfied with the connection availability on T-Mobile’s network, which was still well behind Verizon (69% satisfied) and AT&T (67% satisfied). However, when it comes to a connection’s reliability, the survey found that 58% of T-Mobile customers were satisfied, or just one percentage point below Verizon customers’ satisfaction with their connection liability. This is particularly impressive given that T-Mobile’s connection reliability rating in 2013 stood at just 44%.

Things look even better for T-Mobile when we turn to mobile data speeds — Computerworld writes that “T-Mobile is on top in the current survey with a 65% satisfaction rate, followed by AT&T at 62% and Verizon at 59%,” while “Sprint is far behind with only a 43% satisfaction rate, barely beating out its 39% dissatisfaction rate.”

So it sounds like T-Mobile has made huge strides in terms of network data speeds and connection reliability but still has a lot of work to do on overall connection availability.

To read Computerworld’s full survey results, check them out at the source link below.

Prior to joining BGR as News Editor, Brad Reed spent five years covering the wireless industry for Network World. His first smartphone was a BlackBerry but he has since become a loyal Android user.