Port Jefferson residents have 2 internet providers to choose from. Optimum is the most popular provider, offering cable internet service. In our research, we have been seeing 103 Mbps for download speeds and 21 Mbps for upload speeds for Optimum customers over 2,058 recent tests. In addition to Optimum, DSL and fiber internet service is also available from Verizon.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Optimum Cable | 103 Mbps | 21 Mbps | 9 ms |
| Verizon DSL Fiber | 259 Mbps | 89 Mbps | 6 ms |
| * Data from speed tests taken in the last 3 months | |||
Optimum is the most popular provider in Port Jefferson offering cable internet service. Users have been getting 103 Mbps for download speeds and 21 Mbps for upload speeds over 2,058 recent tests.
Optimum 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 Port Jefferson. 27% of users saw download speeds between 100-250 Mbps, and 40% of users saw upload speeds between 25-50 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 65 Mbps | 4 Mbps | 80 ms |
| March 16, 2024 | 724 Mbps | 37 Mbps | 5 ms |
| March 16, 2024 | 207 Mbps | 9 Mbps | 8 ms |
| March 16, 2024 | 215 Mbps | 37 Mbps | 6 ms |
| March 16, 2024 | 161 Mbps | 1 Mbps | 13 ms |
| March 16, 2024 | 115 Mbps | 37 Mbps | 10 ms |
| March 15, 2024 | 62 Mbps | 1 Mbps | 10 ms |
| March 15, 2024 | 52 Mbps | 1 Mbps | 27 ms |
| March 15, 2024 | 265 Mbps | 20 Mbps | 7 ms |
| March 15, 2024 | 214 Mbps | 37 Mbps | 7 ms |
Verizon is the 2nd most popular provider in Port Jefferson offering DSL and fiber internet service. Users have been getting 259 Mbps for download speeds and 89 Mbps for upload speeds over 715 recent tests.
Verizon has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Port Jefferson. 30% of users saw download speeds between 250-500 Mbps, and 28% of users saw upload speeds between 100-250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 15, 2024 | 300 Mbps | 12 Mbps | 6 ms |
| March 15, 2024 | 291 Mbps | 253 Mbps | 7 ms |
| March 14, 2024 | 220 Mbps | 12 Mbps | 6 ms |
| March 14, 2024 | 79 Mbps | 88 Mbps | 7 ms |
| March 14, 2024 | 302 Mbps | 266 Mbps | 7 ms |
| March 13, 2024 | 444 Mbps | 352 Mbps | 4 ms |
| March 12, 2024 | 347 Mbps | 230 Mbps | 6 ms |
| March 12, 2024 | 62 Mbps | 50 Mbps | 7 ms |
| March 12, 2024 | 696 Mbps | 32 Mbps | 6 ms |
| March 11, 2024 | 508 Mbps | 483 Mbps | 7 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.