The 646 area code covers the same area as 212, including New York City.
Area code 646 is in New York, on Eastern Time. It has been in service since July 1, 1999. 212, 332 and 917 cover the same area, so two neighbours can have different area codes.
- Where
- New York City, New York
- Time zone
- Eastern Time
- In service since
- July 1, 1999
- Shares its area with
- 212 (since 1947), 332 (since 2017) and 917 (since 1992)
- Prefixes in use
- 781
- How to dial
- Local calls need 1, then the area code, then the number: 1-646-555-0142.
Find out who called you from a 646 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (646) number is on today, use our free carrier lookup.
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New York City holds every phone prefix in area code 646.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 781 prefixes in use shows where 646 numbers are actually given out.
- New York City781 prefixes, 100%
T-Mobile holds the most phone number prefixes in area code 646: 192 of 781.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 781 prefixes in use in 646 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| T-MobileMobile network | 192 | 25% |
| AT&T MobilityMobile network | 72 | 9% |
| PAETEC (Windstream)Windstream's business phone network | 66 | 8% |
| Level 3 (Lumen)Lumen's business and wholesale network | 60 | 8% |
| BandwidthSupplies numbers to VoIP and app-based phone services | 32 | 4% |
| Metro by T-MobileT-Mobile's prepaid brand | 20 | 3% |
| 31 other carriers | 339 | 43% |
85% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
646 started in 1999 as an overlay on 212, and its ground has not changed since.
1999
646 starts on July 1, 1999, as an overlay on 212: new numbers on the same ground.
A 646 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 646 are 201, 914 and 516.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
New York has 22 other area codes.
These are the questions people ask most about area code 646.
Where is area code 646?
646 covers New York City in New York.
What state is area code 646 in?
New York. 646 is a New York area code on Eastern Time.
Which phone company owns area code 646?
No single phone company owns 646. NANPA's records show T-Mobile holds the most 646 prefixes, 192 of 781, followed by AT&T Mobility and PAETEC (Windstream). Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 646 in?
646 is on Eastern Time.
When did area code 646 start?
646 went into service on July 1, 1999, as an overlay on 212: new numbers for the same area.
Is 646 the same area as 212, 332 and 917?
Yes. 212 (since 1947), 332 (since 2017) and 917 (since 1992) cover the same ground as 646. Nobody's number changed when they were added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 646 number?
Local calls need 1, then the area code, then the number: 1-646-555-0142.
Is 646 a toll-free number?
No. 646 is a regular area code for New York City in New York, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 646?
The closest are 201/551 (Hackensack, New Jersey), 914 (Westchester County, New York), 516/363 (Nassau County, New York) and 973/862 (Newark, New Jersey), measured between the centres of each area.
Who called me from a 646 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 646 a scam?
646 is a real New York area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.