Hauppauge, NY Area Codes
Hauppauge, New York (population 20,772) uses area codes 631 and 934.
Hauppauge has no telephone exchange of its own in NANPA records; it is served by the Smithtown exchange about 3.9 km away.
Carriers with Hauppauge numbers
24 prefixes are assigned to the Smithtown exchange: 29% mobile, 33% VoIP and cable, 38% landline.
| Carrier | Prefixes |
|---|---|
| Verizon | 8 |
| T-Mobile | 5 |
| Cablevision Lightpath | 3 |
| Verizon Business (MCImetro) | 3 |
| Verizon Wireless | 2 |
| Lumen (Level 3) | 1 |
| Rcn Telecom Services | 1 |
| Onvoy (Sinch) | 1 |
Area codes used in Hauppauge
| Area code | Prefixes serving Hauppauge | Main carriers in this code |
|---|---|---|
| 631 | 20 | Verizon, Verizon Business (MCImetro), T-Mobile |
| 934 | 4 | Onvoy (Sinch), Fractel, T-Mobile |
Hauppauge phone number prefixes
Numbers starting with these first six digits were originally assigned to the Smithtown exchange.
631-240Lumen (Level 3)631-257Cablevision Lightpath631-263Verizon Wireless631-265Verizon631-352T-Mobile631-360Verizon631-361Verizon631-366Verizon631-382Verizon631-406Rcn Telecom Services631-652Verizon Business (MCImetro)631-656Cablevision Lightpath631-672T-Mobile631-724Verizon631-780Verizon Business (MCImetro)631-863Verizon631-974T-Mobile631-979Verizon631-982Verizon Business (MCImetro)631-986Onvoy (Sinch)934-221T-Mobile934-223Cablevision Lightpath934-227T-Mobile934-260Verizon Wireless
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 Hauppauge, NY?
- Hauppauge 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 Hauppauge in?
- Hauppauge is in the Eastern time zone.