Portsmouth residents have 2 internet providers to choose from. Spectrum is the most popular provider, offering cable internet service. In our research, we have been seeing 145 Mbps for download speeds and 11 Mbps for upload speeds for Spectrum customers over 7,656 recent tests. In addition to Spectrum, DSL internet service is also available from Frontier Communications.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Spectrum Cable | 145 Mbps | 11 Mbps | 36 ms |
| Frontier Communications DSL | 13 Mbps | 1 Mbps | 44 ms |
| * Data from speed tests taken in the last 3 months | |||
Spectrum is the most popular provider in Portsmouth offering cable internet service. Users have been getting 145 Mbps for download speeds and 11 Mbps for upload speeds over 7,656 recent tests.
Spectrum has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Portsmouth. 35% of users saw download speeds between 100-250 Mbps, and 61% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 221 Mbps | 18 Mbps | 32 ms |
| March 16, 2024 | 144 Mbps | 12 Mbps | 36 ms |
| March 16, 2024 | 145 Mbps | 12 Mbps | 32 ms |
| March 16, 2024 | 148 Mbps | 11 Mbps | 32 ms |
| March 16, 2024 | 340 Mbps | 11 Mbps | 32 ms |
| March 16, 2024 | 143 Mbps | 11 Mbps | 35 ms |
| March 16, 2024 | 145 Mbps | 11 Mbps | 32 ms |
| March 16, 2024 | 88 Mbps | 40 Mbps | 33 ms |
| March 16, 2024 | 16 Mbps | 2 Mbps | 48 ms |
| March 16, 2024 | 322 Mbps | 8 Mbps | 37 ms |
Frontier Communications is the 2nd most popular provider in Portsmouth offering DSL internet service. Users have been getting 13 Mbps for download speeds and 1 Mbps for upload speeds over 77 recent tests.
Frontier Communications 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. 42% of users saw download speeds slower than 10 Mbps, and 77% of users saw upload speeds slower than 5 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 14 Mbps | 1 Mbps | 56 ms |
| March 16, 2024 | 2 Mbps | 1 Mbps | 43 ms |
| March 16, 2024 | 24 Mbps | 2 Mbps | 38 ms |
| March 16, 2024 | 17 Mbps | 1 Mbps | 36 ms |
| March 15, 2024 | 4 Mbps | 1 Mbps | 62 ms |
| March 15, 2024 | 28 Mbps | 21 Mbps | 30 ms |
| March 15, 2024 | 46 Mbps | 2 Mbps | 43 ms |
| March 14, 2024 | 48 Mbps | 3 Mbps | 41 ms |
| March 14, 2024 | 642 Mbps | 677 Mbps | 36 ms |
| March 14, 2024 | 59 Mbps | 6 Mbps | 46 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.