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Upper Montclair, NJ Area Codes

Upper Montclair, New Jersey (population 12,279) uses area codes 973 and 862.

Area code973
Area code862
Time zoneEastern
Local time now…

Upper Montclair has no telephone exchange of its own in NANPA records; it is served by the Passaic exchange about 6.3 km away.

Upper MontclairNewarkPatersonCliftonEast OrangePassaicGarfieldHarrisonParsippanyMorristownHawthorneDoverPreaknessUpper Montclair
Upper Montclair and nearby cities in area code 973

Carriers with Upper Montclair numbers

86 prefixes are assigned to the Passaic exchange: 26% mobile, 20% VoIP and cable, 55% landline.

CarrierPrefixes
Verizon22
Metropcs16
T-Mobile13
AT&T Mobility9
Lumen (Level 3)5
Verizon Business (MCImetro)4
Onvoy (Sinch)4
Csc Voice3

Area codes used in Upper Montclair

Area codePrefixes serving Upper MontclairMain carriers in this code
97346Verizon, Lumen (Level 3), Verizon Business (MCImetro)
86240T-Mobile, Onvoy (Sinch), AT&T Mobility

Upper Montclair phone number prefixes

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

Nearby cities in area code 973

Questions

What is the area code for Upper Montclair, NJ?
Upper Montclair uses 2 area codes: 973 and 862. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Upper Montclair in?
Upper Montclair is in the Eastern time zone.