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Syosset, NY Area Codes

Syosset, New York (population 18,274) uses area codes 516 and 363.

Area code516
Area code363
Time zoneEastern
Local time now…

NANPA records do not list Syosset separately: its numbers belong to the Nassau County exchange, which covers the whole area.

SyossetHempsteadLevittownFreeportHicksvilleCoramValley StreamCentral IslipElmontEast MeadowLong BeachUniondaleBaldwinSyosset
Syosset and nearby cities in area code 516

Carriers with Syosset numbers

737 prefixes are assigned to the Nassau County exchange: 33% mobile, 26% VoIP and cable, 41% landline.

CarrierPrefixes
Verizon183
T-Mobile89
Verizon Wireless82
AT&T Mobility70
Onvoy (Sinch)56
Cablevision Lightpath39
Verizon Business (MCImetro)37
Bandwidth30

Area codes used in Syosset

Area codePrefixes serving SyossetMain carriers in this code
516701Verizon, T-Mobile, AT&T Mobility
36336Onvoy (Sinch), AT&T Mobility, Bandwidth

Syosset phone number prefixes

Numbers starting with these first six digits were originally assigned to the Nassau County exchange.

Nearby cities in area code 516

Questions

What is the area code for Syosset, NY?
Syosset uses 2 area codes: 516 and 363. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Syosset in?
Syosset is in the Eastern time zone.