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Mastic Beach, NY Area Codes
Mastic Beach, New York (population 16,382) uses area codes 631 and 934.
Mastic Beach has no telephone exchange of its own in NANPA records; it is served by the Center Moriches exchange about 5 km away.
Carriers with Mastic Beach numbers
8 prefixes are assigned to the Center Moriches exchange: 0% mobile, 50% VoIP and cable, 50% landline.
| Carrier | Prefixes |
|---|---|
| Onvoy (Sinch) | 3 |
| Verizon | 2 |
| Tc Systems | 1 |
| Cablevision Lightpath | 1 |
| Yorkstream Communications | 1 |
Area codes used in Mastic Beach
| Area code | Prefixes serving Mastic Beach | Main carriers in this code |
|---|---|---|
| 631 | 6 | Verizon, Verizon Business (MCImetro), T-Mobile |
| 934 | 2 | Onvoy (Sinch), Fractel, T-Mobile |
Mastic Beach phone number prefixes
Numbers starting with these first six digits were originally assigned to the Center Moriches exchange.
631-400Onvoy (Sinch)631-503Tc Systems631-874Verizon631-878Verizon631-909Cablevision Lightpath631-975Onvoy (Sinch)934-884Onvoy (Sinch)934-999Yorkstream Communications
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 Mastic Beach, NY?
- Mastic Beach 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 Mastic Beach in?
- Mastic Beach is in the Eastern time zone.