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Port Jefferson, NY Area Codes
Port Jefferson, New York (population 8,306) uses area codes 631 and 934.
Carriers with Port Jefferson numbers
17 prefixes are assigned to the Port Jefferson exchange: 0% mobile, 47% VoIP and cable, 53% landline.
| Carrier | Prefixes |
|---|---|
| Verizon | 6 |
| Verizon Business (MCImetro) | 3 |
| Csc Voice | 2 |
| Onvoy (Sinch) | 2 |
| Peerless Network | 1 |
| Paetec Itel | 1 |
| Cablevision Lightpath | 1 |
| Lumen (Level 3) | 1 |
Area codes used in Port Jefferson
| Area code | Prefixes serving Port Jefferson | Main carriers in this code |
|---|---|---|
| 631 | 15 | Verizon, Verizon Business (MCImetro), T-Mobile |
| 934 | 2 | Onvoy (Sinch), Fractel, T-Mobile |
Port Jefferson phone number prefixes
Numbers starting with these first six digits were originally assigned to the Port Jefferson exchange.
631-331Verizon631-403Verizon Business (MCImetro)631-473Verizon631-474Verizon631-476Verizon631-509Csc Voice631-535Peerless Network631-642Verizon631-743Csc Voice631-791Verizon Business (MCImetro)631-802Paetec Itel631-828Cablevision Lightpath631-928Verizon631-938Lumen (Level 3)631-978Verizon Business (MCImetro)934-239Onvoy (Sinch)934-400Onvoy (Sinch)
Nearby cities in area code 631
- West Babylon
- Coram
- Central Islip
- Commack
- Huntington Station
- Centereach
- Bay Shore
- Shirley
- Deer Park
- Lindenhurst
- West Islip
- Holbrook
Questions
- What is the area code for Port Jefferson, NY?
- Port Jefferson uses 2 area codes: 631 and 934. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
- What time zone is Port Jefferson in?
- Port Jefferson is in the Eastern time zone.