Portsmouth residents have 3 internet providers to choose from. Cox Communications is the most popular provider, offering cable and fiber internet service. In our research, we have been seeing 153 Mbps for download speeds and 26 Mbps for upload speeds for Cox Communications customers over 7,297 recent tests. Verizon and Spectrum also have coverage in Portsmouth, although they are not as popular as Cox Communications. These providers offer DSL, fiber and cable internet service.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Cox Communications Cable Fiber | 153 Mbps | 26 Mbps | 11 ms |
| Verizon DSL Fiber | 233 Mbps | 93 Mbps | 13 ms |
| Spectrum Cable | 75 Mbps | 11 Mbps | 49 ms |
| * Data from speed tests taken in the last 3 months | |||
Cox Communications is the most popular provider in Portsmouth offering cable and fiber internet service. Users have been getting 153 Mbps for download speeds and 26 Mbps for upload speeds over 7,297 recent tests.
Cox Communications has the 2nd fastest average download speed, the 2nd fastest average upload speed, and the lowest latency out of all of the providers in Portsmouth. 24% of users saw download speeds between 100-250 Mbps, and 33% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 368 Mbps | 111 Mbps | 10 ms |
| March 16, 2024 | 89 Mbps | 12 Mbps | 13 ms |
| March 16, 2024 | 591 Mbps | 496 Mbps | 8 ms |
| March 16, 2024 | 581 Mbps | 1 Mbps | 9 ms |
| March 16, 2024 | 131 Mbps | 23 Mbps | 11 ms |
| March 16, 2024 | 263 Mbps | 50 Mbps | 10 ms |
| March 16, 2024 | 119 Mbps | 24 Mbps | 10 ms |
| March 16, 2024 | 199 Mbps | 9 Mbps | 12 ms |
| March 16, 2024 | 2 Mbps | 1 Mbps | 21 ms |
| March 16, 2024 | 539 Mbps | 12 Mbps | 10 ms |
Verizon is the 2nd most popular provider in Portsmouth offering DSL and fiber internet service. Users have been getting 233 Mbps for download speeds and 93 Mbps for upload speeds over 2,647 recent tests.
Verizon has the fastest average download speed, the fastest average upload speed, and the 2nd lowest latency out of all of the providers in Portsmouth. 25% of users saw download speeds between 250-500 Mbps, and 30% of users saw upload speeds between 50-100 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 325 Mbps | 204 Mbps | 13 ms |
| March 16, 2024 | 94 Mbps | 82 Mbps | 13 ms |
| March 16, 2024 | 701 Mbps | 90 Mbps | 15 ms |
| March 16, 2024 | 650 Mbps | 742 Mbps | 11 ms |
| March 16, 2024 | 131 Mbps | 77 Mbps | 19 ms |
| March 16, 2024 | 55 Mbps | 38 Mbps | 14 ms |
| March 16, 2024 | 109 Mbps | 102 Mbps | 17 ms |
| March 16, 2024 | 600 Mbps | 232 Mbps | 16 ms |
| March 16, 2024 | 609 Mbps | 119 Mbps | 13 ms |
| March 16, 2024 | 11 Mbps | 19 Mbps | 18 ms |
Spectrum is the 3rd most popular provider in Portsmouth offering cable internet service. Users have been getting 75 Mbps for download speeds and 11 Mbps for upload speeds over 50 recent tests.
Spectrum has the 3rd fastest average download speed, the 3rd fastest average upload speed, and the 3rd lowest latency out of all of the providers in Portsmouth. 41% of users saw download speeds between 50-100 Mbps, and 38% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 14, 2024 | 167 Mbps | 9 Mbps | 49 ms |
| March 12, 2024 | 54 Mbps | 45 Mbps | 58 ms |
| March 10, 2024 | 444 Mbps | 22 Mbps | 49 ms |
| February 25, 2024 | 72 Mbps | 11 Mbps | 35 ms |
| February 24, 2024 | 1 Mbps | 2 Mbps | 46 ms |
| February 23, 2024 | 366 Mbps | 682 Mbps | 43 ms |
| February 23, 2024 | 78 Mbps | 25 Mbps | 47 ms |
| February 21, 2024 | 16 Mbps | 16 Mbps | 56 ms |
| February 20, 2024 | 6 Mbps | 1 Mbps | 47 ms |
| February 20, 2024 | 57 Mbps | 55 Mbps | 45 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.