Portsmouth residents have 2 internet providers to choose from. Cox Communications is the most popular provider, offering cable internet service. In our research, we have been seeing 171 Mbps for download speeds and 25 Mbps for upload speeds for Cox Communications customers over 4,595 recent tests. In addition to Cox Communications, DSL internet service is also available from Verizon.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Cox Communications Cable | 171 Mbps | 25 Mbps | 14 ms |
| Verizon DSL | 4 Mbps | 1 Mbps | 37 ms |
| * Data from speed tests taken in the last 3 months | |||
Cox Communications is the most popular provider in Portsmouth offering cable internet service. Users have been getting 171 Mbps for download speeds and 25 Mbps for upload speeds over 4,595 recent tests.
Cox Communications has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Portsmouth. 26% of users saw download speeds between 100-250 Mbps, and 29% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| June 17, 2024 | 28 Mbps | 58 Mbps | 12 ms |
| June 17, 2024 | 172 Mbps | 17 Mbps | 12 ms |
| June 17, 2024 | 98 Mbps | 29 Mbps | 17 ms |
| June 17, 2024 | 53 Mbps | 9 Mbps | 15 ms |
| June 17, 2024 | 190 Mbps | 25 Mbps | 11 ms |
| June 17, 2024 | 32 Mbps | 21 Mbps | 16 ms |
| June 17, 2024 | 63 Mbps | 17 Mbps | 11 ms |
| June 17, 2024 | 449 Mbps | 6 Mbps | 14 ms |
| June 17, 2024 | 52 Mbps | 9 Mbps | 15 ms |
| June 17, 2024 | 20 Mbps | 9 Mbps | 14 ms |
Verizon is the 2nd most popular provider in Portsmouth offering DSL internet service. Users have been getting 4 Mbps for download speeds and 1 Mbps for upload speeds over 30 recent tests.
Verizon has the 2nd fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Portsmouth. 74% of users saw download speeds slower than 10 Mbps, and 86% of users saw upload speeds slower than 5 Mbps.
Download Speeds
Upload Speeds
We’ll run a download test and an upload test to give you the full picture of your internet connection.