551 area code: location, overlays and numbers
In the US, area code 551 serves New York, New Jersey and has operated since 2001. It shares an overlay with 201.
- Location
- New York, New Jersey
- Operating since
- 2001
- Time zone used
- Eastern time
- Overlay
- 201
- Calls within the area
- Full 10-digit dialling
- Rate-centre locations
- 22
- Expected exhaustion
- 2048
- Country calling code
- +1 (United States)
The exhaust year comes from NANPA projections 2026-1 (April 2026). The area code report and rate-centre report come from NANPA public reports in a file dated 11/01/2026. You are not viewing an official NANPA site.
Pick up a 551 number
There are two ways to get a 551 number. When you sign up for a provider plan, it gives you a new number selected from its existing numbers in the code. Numbers already held by a seller are often listed with a pattern and a one-time price. After buying one, you move it to a provider.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers offering listed local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
We may receive a referral fee from certain sellers and providers. The order always remains based on first-year cost. How we earn
Places in the 551 area code
For 551, NANPA lists 22 rate centres. Every one is a local calling area where numbers are assigned:
The rate centres are Bayonne, Fair Lawn, Hackensack, Hasbrouck Heights, Jersey City, Leonia, Oakland, Park Ridge, Ridgewood, Teaneck, Union City and Westwood. Other rate centres are Cliffside, Closter, Cragmere, Dumont, Englewood, Kearny, Oradell, Ramsey, Rutherford and Wyckoff.
Other related area codes
The 201 code has the same area and number pool. Any of these codes can supply a new number in this area, so request the one you prefer.
In New Jersey, other codes are 609, 908, 732, 973, 856, 848, 862 and 640.
551 area code questions
In which area is code 551 used?
Area code 551 serves New York, New Jersey, in the New York-Newark-Jersey City, NY-NJ area.
Which country code does a 551 number use?
+1. The North American Numbering Plan includes 551. When calling from abroad, use +1 551 followed by the 7-digit number.
What time is it in the 551 area code?
The time in 551 is Eastern.
Which callers use 551?
People with numbers in this code include homes, mobiles, local businesses and callers who fake a local number. If you see a 551 number on your screen, it shows where the number was assigned rather than the identity of the caller.