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Is AT&T Capping Data Upload Speeds For iPhone 4 Users?

July 6th, 2010 07:10 admin Leave a comment Go to comments

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MacRumors is reporting that iPhone 4 users from a number of locations across the US have observed significant drops in data upload speeds on AT&T's 3G network.

We had reported just a few days back that iPhone 4 users were seeing significant improvement in upload speeds as it supports HSUPA (High-Speed Uplink Packet Access).

At that time, Gizmodo had carried out speed tests with an iPhone 3GS and iPhone 4 across several locations in New York City and observed that the download speeds were similar, ranging from 0.5 to 2 Mbps on both iPhones while iPhone 4 was significantly faster in the upload speeds tests. iPhone 3GS (without HUSPA support) could upload files at around 0.1 Mbps while iPhone 4 was able to upload files between 0.6 to 1.4 Mbps.

But things seem to have deteriorated since then as MacRumors reports:

Users in several dozen metro areas scattered across the country, including Boston, New York City, Washington DC, Houston, Phoenix, Las Vegas, and Seattle among others, have reported the issue. The issue does not appear to be nationwide, however, as users in a number of locations including Atlanta, Richmond, and Raleigh, as well as some customers even in markets where other users are affected, are not experiencing slow upload speeds.

Based on these reports, it is widely being speculated that AT&T has started capping data upload speeds. But Gizmodo is reporting that they’re still getting the same upload speeds on their iPhone 4:

It does appear to be a regional outage/restriction, since our tests in Chicago show the kind of upload speeds expected from the iPhone 4—1237kbps.

You can perform the speed tests on your iPhone using Speedtest.net (iTunes link) or Xtreme Labs (iTunes link) free iPhone apps.

Let us know if you've also noticed a significant drop in upload speeds on your iPhone 4.

We’re also expecting to get an official statement from AT&T soon. We’ll keep you posted on this developing story.

[via Macrumors, Gizmodo]

Source: Is AT&T Capping Data Upload Speeds For iPhone 4 Users?

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