201 area code
Hackensack area, Eastern Time.Area code 201 covers Hackensack, Jersey City, Union City and 19 more places in New Jersey, on Eastern Time. 551 covers the same area.
Right now in Hackensack
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
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Where 201 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 201 has 22. Each one's share is how many 201 numbers start there. Its biggest metro area is New York-Newark-Jersey City, NY-NJ.
- Hackensack22%
- Jersey City19%
- Union City7%
- Rutherford5%
- Ramsey4%
- Fair Lawn4%
- Oradell4%
- Cliffside3%
- Teaneck3%
- Englewood3%
- Bayonne3%
- Kearny3%
Also: Ridgewood, Leonia, Park Ridge, Wyckoff, Cragmere, Hasbrouck Heights, Closter, Dumont, Westwood, Oakland
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 201 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 201 number to them, since you can't tell a work line from a personal cell.
What applies to 201Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
201 and 551
201 is one of the original area codes from 1947, and 609, 908 and 973 were later split off from it. 201 and 551 cover the same area, so new numbers can get either code and neighbors can have different area codes. 201 holds 71% of the area's exchanges; 551 holds the rest. Local calls take all 10 digits.
- 1947201 starts
- 1957609 split off
- 1990908 split off
- 1997973 split off
- 2001551 overlay
Source: NANPA area code database
Calling a list of 201 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
201 area code FAQ
What area code is 201?
201 is a New Jersey area code for Hackensack, Jersey City, Union City, Rutherford and 18 more places.
What time zone is the 201 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 551 the same as 201?
Same area, different code. 201 and 551 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 201 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 201 area code start?
In 1947: it's one of the original area codes.
Calling 201 numbers? Reach more of them.
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