973 Area Code: Newark and North Jersey’s Number

Newark and the North Jersey interior — Essex, Passaic, Morris, and Sussex counties, from the Passaic River docks to the Kittatinny foothills — carry the 973 area code. It was cut from 201 on June 1, 1997, and has shared its entire footprint with the 862 overlay since December 29, 2001.

973 at a glance

Quick fact	Answer
In service since	June 1, 1997
Split from	201, New Jersey’s original 1947 code
Overlay	862, in service December 29, 2001 across the identical footprint
Territory anchors	Newark, Paterson, Clifton, Morristown, Newton
Dialing	Ten digits local, mandatory since December 1, 2001

The 1997 split drew a revealing line across North Jersey. 201 kept the Hudson waterfront and Bergen’s commuter grid — the slice that faces Manhattan. 973 got the part of the region that works for itself: the state’s largest city, its old mill capital, and its corporate headquarters belt.

The map 973 drew

973 and 862 cover Essex County (Newark, East Orange, Irvington, Montclair, Bloomfield, Livingston), Passaic County (Paterson, Clifton, Passaic, Wayne, West Milford), Morris County (Morristown, Parsippany-Troy Hills, Dover, Madison), and Sussex County to the New York line — Newton, Sparta, Vernon, Montague.

The edges are stranger than the county list suggests. Harrison and East Newark — Hudson County towns — dial 973, the original planning letter marks Bergen towns like Fair Lawn as split between the two codes, and over the Union County line, Springfield and Hillside answer on 973 exchanges. Area codes follow rate-center boundaries, not county lines; our NPA-NXX guide explains why the two maps never quite agree.

What a 973 display does and doesn’t prove

A 973 on caller ID dates and places the number’s issuance — nothing more. Ported lines keep their digits after a move, VoIP originates from anywhere, and spoofing tools print whatever digits they like onto a display, including a neighbor-spoofed prefix mirroring your own exchange.

The discipline that works: treat the display as a hint. Ring back a real Essex County school office, utility, or medical practice on its published number and it will be there; ring back a spoof and it won’t.

Four codes in fifty years

201 was New Jersey’s original area code, covering the whole state from the numbering plan’s start in 1947. South Jersey left as 609 in 1957, and the central band became 908 in November 1990 — the mechanics of these splits are covered in our area code explainer.

Even reduced to six northern counties, 201 kept exhausting prefixes. Second lines, fax machines, pagers, and new competitive carriers all drew numbering blocks from one shrinking pool. Bell Atlantic advised the numbering administrator that relief was unavoidable, the New Jersey Board of Public Utilities approved a geographic split, and NANPA’s Planning Letter PL-NANP-036 announced the new code in January 1997.

June 1, 1997: the interior gets its own code

At 2:00 a.m. on Sunday, June 1, 1997, everything outside Bergen and Hudson counties moved to 973 — including Newark, fifty years a 201 city. Permissive dialing ran until December 6, 1997, so either code completed a call while letterheads and truck doors were reprinted. A test line at 973-759-3816 had been answering since May 1.

The same morning, 732 split from 908 across central Jersey — two codes became four in one night, a measure of how fast the region was consuming numbers. 201 has been the Bergen–Hudson code ever since.

The economy behind the digits

Newark is New Jersey’s largest city — 311,549 residents at the 2020 Census, ahead of Jersey City — and its working engine: port, airport, rail, and an insurance industry anchored by Prudential, founded in a Broad Street office in 1875 and headquartered at 751 Broad Street today.

Paterson, up the Passaic River, is the country’s industrial-policy prototype: founded in 1792 as the project of Alexander Hamilton’s Society for Establishing Useful Manufactures, chartered a year earlier to run mills off the Great Falls. The silk trade that followed named it “Silk City” and made its 1913 strike a labor-history landmark; the falls district is a national historical park today.

Morristown quartered Washington’s Continental Army through the winter of 1779–80. Its modern garrison is corporate — the county-seat office belt where North Jersey’s headquarters cluster. And West Orange holds Thomas Edison’s laboratory complex, preserved by the National Park Service in a town that now dials 973.

December 29, 2001: 862 stacks on top

The split bought less than five years. On March 19, 2001, the Board of Public Utilities ordered all-services overlays for all three northern codes at once, and NANPA Planning Letter PL-277 assigned the new trio: 551 over 201, 862 over 973, 848 over 732. All three went into service on December 29, 2001.

The dialing change landed first. Permissive ten-digit dialing began July 1, 2001, and from 12:01 a.m. on December 1, 2001, local calls in 973 required all ten digits — before a single 862 number had been issued. An 862 number is simply drawn from the younger pool across the identical territory: same coverage, same cost, same North Jersey.

That early conversion had a quiet payoff two decades later. By the time NANPA’s PL-556 marched 82 seven-digit area codes onto ten-digit dialing in 2021 to clear the way for the 988 crisis line, New Jersey’s entries were 856 and 908 — 973 had nothing left to change.

Earning the pickup in North Jersey

For businesses selling into North Jersey — contractors working the Morris County office belt, practices in the Oranges, brokers and freight operators around the port — a 973 display reads as a neighbor, and neighbors get answered. Our research on local presence dialing makes the answer-rate case — wherever the operation actually sits.

SIPNEX stocks North Jersey DIDs in 973 and 862 by rate center — availability depends on inventory at order time — and terminates them to your phone system across SIP trunking, with a STIR/SHAKEN certificate of our own putting A-level attestation on outbound calls.

Questions callers ask about 973

Which New Jersey counties does the 973 area code serve?

Essex, Passaic, Morris, and Sussex counties form the core — Newark, Paterson, Clifton, Wayne, Morristown, and Newton among them. The boundary also takes in Harrison and East Newark in Hudson County, split towns like Fair Lawn on the Bergen edge, and 973 towns such as Springfield and Hillside in Union County. The 862 overlay serves the identical territory.

When was the 973 area code created, and from what?

973 went into service at 2:00 a.m. on June 1, 1997, split from 201 — New Jersey’s original 1947 statewide code. Bergen and Hudson counties kept 201; the interior counties took the new digits, with permissive dialing of either code running until December 6, 1997. NANPA announced the plan in Planning Letter PL-NANP-036.

Is 862 the same region as 973?

Exactly the same. NANPA Planning Letter PL-277 assigned 862 as an all-services overlay of 973 after the New Jersey Board of Public Utilities approved relief on March 19, 2001, and it went into service on December 29, 2001. An 862 number comes from the newer pool but covers the same territory at the same cost.

Why do calls within 973 require ten digits?

Because of the 862 overlay. Once two codes shared one map, seven digits could no longer identify a line, so mandatory ten-digit local dialing took effect on December 1, 2001. That is why 973 is absent from NANPA’s PL-556, the 2021 list of 82 codes converted for the 988 crisis line — New Jersey’s entries there are 856 and 908.

Can my business get a 973 number without a New Jersey office?

Yes. Rate-center inventory, not proof of address, is what governs assignment, so a company serving Newark, Paterson, or Morristown customers from anywhere can present 973 digits. Fresh 973 stock varies by rate center after nearly three decades of assignments; where it runs thin, an 862 number projects the same North Jersey identity.

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North Jersey presence works best on licensed rails: SIPNEX carries direct FCC authorization, DID inventory in 973/862 and beyond, RespOrg toll-free, and SIP trunking with A-level signatures from our own STIR/SHAKEN certificate on all outbound traffic. Call (833) 665-2220, start a conversation with our team, or read the rate sheet.