Mobile
Rank
10 +1
Download
221.41 Mbps
Upload
18.09 Mbps
Latency
36 ms
Fixed Broadband
Rank
12 +1
Download
306.31 Mbps
Upload
129.26 Mbps
Latency
21 ms
Mobile
Rank
11 +1
Download
122.74 Mbps
Upload
10.02 Mbps
Latency
29 ms
Fixed Broadband
Rank
6 +1
Download
242.38 Mbps
Upload
30.68 Mbps
Latency
13 ms

Results are updated mid-month for the previous month. Locations must have at least 300 unique user results for mobile or fixed broadband to be ranked in either category.

Market Analysis

Fastest Providers - Download

Speedtest Intelligence® reveals Cox recorded the fastest median download speed among top fixed broadband providers in the United States at 261.27 Mbps during Q4 2023. Spectrum was second at 252.71 Mbps and AT&T Internet third at 244.88 Mbps. XFINITY, Frontier, Optimum, and Verizon followed.

Median Download Speed Mbps
Provider

261.27

Cox

252.71

Spectrum

244.88

AT&T Internet

238.90

XFINITY

221.01

Frontier

211.14

Optimum

202.21

Verizon

0100200300
Error bars indicate 95% CI

Fastest Providers - Upload

AT&T Internet had the fastest median upload speed among top fixed broadband providers at 195.64 Mbps during Q4 2023. Frontier was a close second at 185.07 Mbps and Verizon was third at 102.27 Mbps. Cox was a distant fourth, followed by Optimum in fifth, XFINITY in sixth, and Spectrum in seventh.

Median Upload Speed Mbps
Provider

195.64

AT&T Internet

185.07

Frontier

102.27

Verizon

34.00

Cox

29.80

Optimum

22.89

XFINITY

15.60

Spectrum

050100150200
Error bars indicate 95% CI

Median Multi-Server Latency

Calculating median multi-server latency for top fixed broadband providers in the U.S. during Q4 2023, Verizon had the lowest median multi-server latency at 15 ms. Frontier was next at 17 ms. AT&T Internet followed at 22 ms, then Optimum at 23 ms, Cox at 25 ms, XFINITY at 26 ms, and Spectrum at 32 ms.

Median Multi-Server Latency ms
Provider

15

Verizon

17

Frontier

22

AT&T Internet

23

Optimum

25

Cox

26

XFINITY

32

Spectrum

010203040
Error bars indicate 95% CI

Consistency

In measuring the Consistency of each fixed broadband provider’s performance, there was no statistical winner during Q4 2023. Spectrum had a Consistency of 92.0% of results showing at least a 25 Mbps download speed and 3 Mbps upload speed, while XFINITY had a Consistency of 91.7%, and Cox had a Consistency of 91.0%. Optimum was next at 89.9%. Verizon was fifth, AT&T Internet sixth, and Frontier seventh.

Consistency (%)
Provider

92.0%

Spectrum

91.7%

XFINITY

91.0%

Cox

89.9%

Optimum

88.1%

Verizon

86.5%

AT&T Internet

84.4%

Frontier

Video Score™

In measuring the Video Score of each fixed broadband provider’s video performance, we found no statistical winner for the highest Video Score in the U.S. during Q4 2023. Verizon had a Video Score of 85.19, Frontier 85.18, XFINITY 85.17, Cox 85.11, AT&T Internet 85.05, Optimum 84.64, Spectrum 84.24, and Space X’s Starlink 79.37.

Video Score™
Provider

85.19

Verizon

85.18

Frontier

85.17

XFINITY

85.11

Cox

85.05

AT&T Internet

84.64

Optimum

84.24

Spectrum

79.37

SpaceX Starlink

020406080100

Regional Speeds

At the state level, Rhode Island showed the fastest median download speeds over fixed broadband in the U.S. during Q4 2023 at 257.48 Mbps. Connecticut was second, Florida third, Delaware fourth, and New Hampshire fifth.

Wyoming had the slowest median download speed in the U.S. during Q4 2023 at 105.23 Mbps. Montana was next slowest, then Alaska, New Mexico, and Idaho.

Spectrum was the fastest fixed broadband provider in eight states during Q4 2023. XFINITY was fastest in six states. Google Fiber was fastest in five states, followed by AT&T Internet and Cox which were fastest in three each. Verizon was fastest in two states. Allo, Bluepeak, C Spire, Connect2First, Frontier, GCI, MetroNet, Midco, SRT, USI, and Ziply Fiber were each fastest in one state during Q4 2023. Results were too close to statistically determine in 11 states and the District of Columbia.

Rank
State
Median
Download
Mbps
Median
Upload
Mbps
Median Multi-Server Latency
Fastest Provider
Provider's Median Download
Mbps
1Rhode Island257.4857.3319
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
2Connecticut244.2336.6025Frontier291.83
3Florida238.3023.8626AT&T Internet286.89
4Delaware237.4238.7026
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
5New Hampshire234.5033.6225
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
6New Jersey234.0040.8517Verizon251.75
7North Carolina231.4122.8634Google Fiber337.13
8Tennessee230.2740.7835
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
9Nevada228.6935.9726Cox272.58
10California226.8922.9721Spectrum255.18

City Speeds

Among the 100 most populous cities in the U.S., Raleigh, North Carolina took the top spot as the fastest city for median download speeds over fixed broadband at 289.96 Mbps. Chesapeake, Virginia was second; Corpus Christi, Texas third; Irvine, California fourth; and Austin, Texas fifth.

Atlanta, Georgia had the slowest median download speed over fixed broadband among the 100 most populous cities in the U.S. during Q4 2023, at 91.35 Mbps. Detroit, Michigan was second slowest; Dallas, Texas third slowest; Seattle, Washington fourth slowest; and Denver, Colorado fifth slowest.

AT&T Internet was the fastest fixed broadband provider in 25 cities during Q4 2023, followed by XFINITY which was fastest in 12 cities. Cox was fastest in 10 cities, while Spectrum was fastest in eight. Google Fiber was fastest in seven cities, followed by Verizon in six, while Frontier was fastest in two. Allo, Buckeye CableSystem, GCI, IQ Fiber, MetroNet, Rocket Fiber, Sonic, Sparklight, USI, and Wyyerd Fiber were each fastest in one major U.S. city during Q4 2023. Results were too close to statistically determine in 20 cities during this same period.

Rank
City
Median
Download
Mbps
Median
Upload
Mbps
Median Multi-Server Latency
Fastest Provider
Provider's Median Download
Mbps
1Raleigh, NC289.9687.2126Google Fiber345.17
2Chesapeake, VA284.7557.6826Cox318.37
3Corpus Christi, TX281.8023.6140AT&T Internet323.88
4Irvine, CA278.8096.0614Google Fiber337.32
5Austin, TX273.5740.2526Google Fiber337.46
6San Antonio, TX271.0938.3129Google Fiber323.00
7Durham, NC269.9323.3829
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
8Lincoln, NE269.86107.5915Allo308.62
9Henderson, NV269.3056.8524Cox280.28
10Kansas City, MO269.12149.1912Google Fiber303.45

Market Analysis

Fastest Providers - Download

Speedtest Intelligence® reveals T-Mobile was the fastest top mobile operator in the United States during Q4 2023 with a median download speed of 188.96 Mbps on modern chipsets, a strong increase from 163.59 Mbps during Q3 2023. Verizon Wireless and AT&T were distant runners up, although both saw increases in median download speed.

Median Download Speed Mbps
Provider

188.96

T-Mobile

91.62

Verizon Wireless

90.82

AT&T

050100150200
Error bars indicate 95% CI

Fastest Providers - Upload

T-Mobile had the fastest median upload speed among top mobile operators in the U.S. at 12.19 Mbps during Q4 2023. Verizon Wireless was second and AT&T finished third.

Median Upload Speed Mbps
Provider

12.19

T-Mobile

9.98

Verizon Wireless

8.06

AT&T

051015
Error bars indicate 95% CI

Median Multi-Server Latency

Calculating median multi-server latency for the three top mobile operators in the U.S. during Q4 2023, T-Mobile had the lowest latency at 50 ms. Verizon Wireless was a close second at 57 ms. AT&T was third at 64 ms. As latency becomes an increasingly important measure, we’ll be sure to watch latency metrics closely.

Median Multi-Server Latency ms
Provider

50

T-Mobile

57

Verizon Wireless

64

AT&T

020406080
Error bars indicate 95% CI

Consistency

In measuring the Consistency of each operator’s performance, we found that T-Mobile had the highest Consistency in the U.S. during Q4 2023, with 87.3% of results showing at least 5 Mbps download and 1 Mbps upload speeds. Verizon Wireless and AT&T followed at 83.7% and 81.3%, respectively.

Consistency (%)
Provider

87.3%

T-Mobile

83.7%

Verizon Wireless

81.3%

AT&T

Video Score™

In measuring the Video Score of each mobile operator’s video performance, we found that T-Mobile had the highest Video Score in the U.S. at 78.21 during Q4 2023. Verizon Wireless was second with 74.38 and AT&T was third at 71.25.

Video Score™
Provider

78.21

T-Mobile

74.38

Verizon Wireless

71.25

AT&T

020406080

5G Video Score™

Looking at the 5G Video Score of each operator’s video performance over a 5G connection, T-Mobile had the highest 5G Video Score in Q4 2023 at 81.54. Verizon Wireless recorded a 5G Video Score of 79.67 and AT&T had a score of 73.32.

5G Video Score™
Provider

81.54

T-Mobile

79.67

Verizon Wireless

73.32

AT&T

020406080100

5G Performance

Looking only at tests taken on a 5G connection, T-Mobile had the fastest median 5G download speed in the U.S. at 238.87 Mbps during Q4 2023, an improvement on its performance during Q3 2023. Verizon Wireless remained second and continued to improve its median 5G performance, recording 196.43 Mbps in Q4 2023, up from 153.79 Mbps in Q3 2023. AT&T remained third, but also showed an increase, recording 125.73 Mbps in Q4 2023, up from 101.55 Mbps in Q3 2023.

5G Median Download Speed Mbps
Provider

238.87

T-Mobile

196.43

Verizon Wireless

125.73

AT&T

0100200300
Error bars indicate 95% CI

5G Median Multi-Server Latency

Our mobile 5G multi-server latency results in Q4 2023 showed that among top providers, T-Mobile registered the lowest median 5G latency in the United States. Latency was a tight race, but our testing showed that with a median value of 48 ms, T-Mobile users saw better multi-server latency values than those of their nearest competitor, Verizon Wireless (52 ms).

5G Median Multi-Server Latency ms
Provider

48

T-Mobile

52

Verizon Wireless

63

AT&T

020406080
Error bars indicate 95% CI

5G Consistency (%)

In measuring the Consistency of each operator’s performance over a 5G connection in the U.S. during Q4 2023, we found that there was no statistical winner for highest 5G Consistency.

5G Consistency (%)
Provider

76.7 %

T-Mobile

76.3 %

Verizon Wireless

68.8 %

AT&T

020406080
Error bars indicate 95% CI

Device Information

Our analysis of the most popular devices in the U.S. during Q4 2023 showed that the Apple iPhone 15 Pro Max recorded the fastest median download speed, followed by the iPhone 15 Pro. These two leading devices were followed by the Samsung Galaxy Z Fold4, the Samsung Galaxy S23 Ultra, and the iPhone 15.

Device Name
Manufacturer
Median
Download
Mbps
Median
Upload
Mbps
Median
Median Multi-Server Latency
ms
iPhone 15 Pro MaxApple213.8414.7054
iPhone 15 ProApple189.3312.9054
Galaxy Z Fold4Samsung184.6912.4153
Galaxy S23 UltraSamsung181.0413.8852
iPhone 15Apple172.1212.1655

Manufacturer Information

We examined combined performance by major cell phone manufacturers and found that there was no statistical winner in the United States during Q4 2023.

Manufacturer
Median
Download
Mbps
Median
Upload
Mbps
Median
Median Multi-Server Latency
ms
Samsung113.7410.5154
Apple103.749.2058

Chipset Information

Looking at popular chipsets in the U.S., the Qualcomm Snapdragon X70 5G recorded the fastest median download speed during Q4 2023 at 205.38 Mbps.

Chipset
Manufacturer
Median
Download
Mbps
Median
Upload
Mbps
Median
Median Multi-Server Latency
ms
Snapdragon X70 5GQualcomm205.3814.1054
Snapdragon 8 Gen 2Qualcomm173.5513.1352
Snapdragon 8+ Gen 1Qualcomm169.2711.9553
Snapdragon X65 5GQualcomm151.5411.7957
Snapdragon 8 Gen 1Qualcomm149.6511.1155

Regional Speeds

At the state level, Illinois recorded the fastest median mobile download speed during Q4 2023 at 138.89 Mbps. It was followed by North Dakota in second place, Rhode Island in third, Minnesota fourth, and Nevada fifth.

Vermont had the slowest median download speed at 42.29 Mbps. Maine was next slowest, then Alaska, Wyoming, and Mississippi.

T-Mobile was the fastest mobile operator in 46 states and the District of Columbia during Q4 2023. Verizon was the fastest in North Dakota, GCI was fastest in Alaska, while results were too close to call in South Dakota and Vermont.

Rank
State
Median
Download
Mbps
Median
Upload
Mbps
Median Multi-Server Latency
Fastest Provider
Provider's Median Download
Mbps
1Illinois138.8910.9145T-Mobile199.47
2North Dakota129.7312.9280Verizon Wireless192.33
3Rhode Island129.5012.7050T-Mobile172.65
4Minnesota128.229.1961T-Mobile187.26
5Nevada125.5411.1853T-Mobile150.25
6District of Columbia124.9013.1944T-Mobile242.56
7New Jersey123.2612.4546T-Mobile155.39
8Arizona121.729.1761T-Mobile195.64
9New York117.6113.7149T-Mobile182.52
10Utah117.5210.7167T-Mobile157.23

City Speeds

Glendale, Arizona had the fastest median mobile download speed among the 100 most populous cities in the U.S. at 224.51 Mbps during Q4 2023. Plano, Texas was second; St Paul, Minnesota was third; Indianapolis, Indiana fourth; and Chandler, Arizona was fifth.

Anchorage, Alaska had the slowest median mobile download speed among the U.S.’s 100 most populous cities during Q4 2023 at 58.32 Mbps. Laredo, Texas was second slowest; Reno, Nevada third slowest; Fremont, California fourth slowest; and Richmond, Virginia was fifth slowest.

T-Mobile was the fastest operator in 67 of the 100 most populous cities in the U.S. during Q4 2023. Verizon Wireless was the fastest provider in Irvine, California; Miami, Florida; and El Paso, Texas. AT&T was fastest in Pittsburgh, Pennsylvania. Results were statistically too close to call in 29 cities.

Rank
City
Median
Download
Mbps
Median
Upload
Mbps
Median Multi-Server Latency
Fastest Provider
Provider's Median Download
Mbps
1Glendale, AZ224.5113.0254
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
2Plano, TX219.9113.3437T-Mobile274.09
3St Paul, MN217.0714.3555
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
4Indianapolis, IN216.2213.0046
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
5Chandler, AZ203.4910.2155
-Winner cannot be statistically verified.
-Winner cannot be statistically verified.
6Raleigh, NC202.9811.8959T-Mobile336.68
7Bakersfield, CA199.2411.0550T-Mobile361.69
8Nashville, TN197.9713.1955T-Mobile247.37
9Gilbert, AZ197.328.5756T-Mobile256.63
10Scottsdale, AZ188.2610.8656T-Mobile304.56

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