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Old Westbury, NY Area Codes

Old Westbury, New York (population 5,071) uses area codes 516 and 363.

Area code516
Area code363
Time zoneEastern
Local time now…

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

Old WestburyHempsteadLevittownFreeportHicksvilleCoramValley StreamCentral IslipElmontEast MeadowLong BeachUniondaleBaldwinOld Westbury
Old Westbury and nearby cities in area code 516

Carriers with Old Westbury 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 Old Westbury

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

Old Westbury 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 Old Westbury, NY?
Old Westbury 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 Old Westbury in?
Old Westbury is in the Eastern time zone.