Area code 646: New York
Area code 646 is a US state area code for New York, on Eastern Time. All 781 of its prefixes in service are in the New York City Zone 01 rate center. It shares its area with 212, 332 and 917, so local numbers there can start with any of them. Local calls there take 1 + 10 digits.
Local time in area code 646
America/New_York
Prefixes in service
781 of 792 possible
1 rate center
Area code 646 facts
| Location | New York, United States |
|---|---|
| Time zone | Eastern Time |
| Overlays | 212, 332, 917 |
| Overlay of | 212 |
| In service since | July 1, 1999 |
| Local calls | 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 646?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 646 rate centers with the most prefixes in service.
| Rate center | Prefixes |
|---|---|
| New York City Zone 01 | 781 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 646 number?
NANPA's dialling plan for 646: local calls inside the code take 1 + 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 646 | 1-646-555-0147 |
|---|---|
| From another US or Canadian area code | 1-646-555-0147 |
| From outside North America | +1 646 555 0147 |
| E.164, for CRMs and SMS tools | +16465550147 |
When did area code 646 start?
Area code 646 went into service on July 1, 1999 as an overlay of 212. Today 646, 212, 332 and 917 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 646 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 646 number tells you where it was issued, not what it is now.
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Area code 646 questions
- What state is area code 646?
- Area code 646 is in New York, United States. Its largest rate centers by number of prefixes are New York City Zone 01.
- What time zone is area code 646 in?
- Eastern Time.
- What area codes overlay 646?
- 212, 332 and 917. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 646 start?
- Area code 646 went into service on July 1, 1999 as an overlay of 212.
- Is a 646 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 646 have?
- 781 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in New York
212315329332347363465516518585607624631680716718838845914917929934
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.