Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — AREA-CODE/973

973 area code

Area code 973 is in New Jersey. It covers Newark, Paterson, East Orange and 115 other places: 135 ZIP codes in Essex, Morris, Passaic and 3 other counties. Local time there is , Eastern Time. In service since 1997; 862 (2001) overlays it, so a number from there can have either code.

Time zone
Eastern
Largest city
Newark
Overlays
862
In service since
1997
Rate centres
42
Prefixes assigned
779 (7,790,000 numbers)

Who calls from a 973 number

NANPA records the carrier each block of 973 numbers is assigned to. Of the 7.7 million 973 numbers assigned, 43% are with local phone companies (Verizon); 31% with cable, internet-calling, business and other carriers (Verizon Business and Onvoy); 26% with mobile carriers (T-Mobile, Verizon Wireless and AT&T Mobility); 1% with paging companies.

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 973 numbers
CarrierKindShare
VerizonLandline39%
T-MobileMobile11%
Verizon WirelessMobile9%
AT&T MobilityMobile6%
Verizon BusinessCable, VoIP, other5%
OnvoyCable, VoIP, other4%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 973

The 39 places with a telephone rate centre of their own using 973, largest first. Each links to its ZIP codes.

Places in area code 973
PlaceZIP codesPopulation
Newark, NJ 20 310,178
Paterson, NJ 14 158,735
Passaic, NJ 1 70,002
Bloomfield, NJ 1 53,771
Belleville, NJ 1 37,984
Orange, NJ 2 34,181
Livingston, NJ 1 31,488
Nutley, NJ 1 29,980
Little Falls, NJ 1 28,085
Morristown, NJ 3 20,453
Hawthorne, NJ 2 19,628
Dover, NJ 2 18,563
South Orange, NJ 1 18,539
Madison, NJ 1 16,447
West Milford, NJ 1 14,966
Hopatcong, NJ 1 14,565
Verona, NJ 1 14,545
Pompton Lakes, NJ 1 11,047
Succasunna, NJ 1 9,799
Lake Mohawk, NJ — 9,508
Chatham, NJ 1 9,407
Caldwell, NJ 2 9,003
Whippany, NJ 2 8,970
Boonton, NJ 1 8,854
Newton, NJ 1 8,369
Butler, NJ 1 8,133
Bernardsville, NJ 1 7,916
Millburn, NJ 1 7,532
Vernon, NJ 1 7,195
Rockaway, NJ 1 6,613
Mendham, NJ 1 4,973
Montague, NJ 1 4,109
Netcong, NJ 1 3,659
Upper Greenwood Lake, NJ — 3,319
Sussex, NJ 1 2,145
Newfoundland, NJ 1 1,361
Branchville, NJ 2 814
Andover, NJ 1 728
Mount Freedom, NJ 1 215

Nearby places using 973

These places have no rate centre of their own in NANPA's records; the nearest one uses 973. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 973

135 ZIP codes in 92 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 973 numbers are issued

NANPA's rate centres with the most 973 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 973
Rate centrePlacePrefixes
NEWARK Newark 147
MORRISTOWN Morristown 90
PASSAIC Passaic 46
CALDWELL Caldwell 42
PATERSON Paterson 40
ORANGE Orange 33

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 973

Where is area code 973?

Area code 973 is in New Jersey. It covers Newark, Paterson, East Orange and 115 other places: 135 ZIP codes in Essex, Morris, Passaic and 3 other counties.

What ZIP codes are in area code 973?

135 ZIP codes, by the town each is mailed to: Newark (20, 07101 to 07199), Paterson (14, 07501 to 07544), East Orange (3, 07017 to 07019), Passaic (07055) and 88 more towns. The full list is on this page.

What time zone is area code 973 in?

Eastern time.

Is a 973 number a mobile or a landline?

It can be either. 26% of 973 numbers are assigned to mobile carriers and 43% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 973?

862. They cover the same area as 973, so a new number there can be given any of them.

Does a 973 number mean the caller is in New Jersey?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 973 call can come from anywhere.

Other area codes in New Jersey

All 10 New Jersey area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 973.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/973

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