640 area code: location, overlays and numbers
Since 2018, the US area code 640 has served New York, New Jersey, and it shares an overlay with 609.
- Location
- New York, New Jersey
- Service start
- 2018
- Local time zone
- Eastern time zone
- Overlay
- 609
- Calls inside the area
- Full 10-digit dialling
- Rate centre list
- 39
- Exhaust, projected
- 2046
- Country dialling prefix
- +1 (United States)
NANPA public reports are the source: the area code report and the rate-centre report, dated 11/01/2026. The NANPA projections, 2026-1 (April 2026), provide the exhaust year. We are not an official NANPA site.
Getting a 640 number
There are two routes to a 640 number. A provider hands out a new number with its plan, chosen when you sign up from the numbers it holds under this code. Sellers list numbers they already hold, often with a pattern, at a one-time price. You then transfer the number 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 listing 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 |
Some sellers and providers may pay us a referral fee. That never affects the ranking, which follows first-year cost. How we earn
Places in the 640 area code
For 640, NANPA lists 39 rate centres. Each one is a local calling area, and numbers are assigned to it:
Florence (burlington), Ewing, Egg Harbor, Dennisville, Cranbury, Cape May Court House, Burlington, Brigantine, Bordentown, Beach Haven, Barnegat, Avalon, Atlantic City, Allentown, Fort Dix, Hammonton, Hightstown, Hopewell (mercer), Wildwood, Vincentown, Tuckerton, Tuckahoe, Trenton, Somers Point, Sea Isle City, Princeton, Pleasantville, Plainsboro, Pennington, Pemberton, Ocean City, New Egypt, Mount Holly, Milmay, Mercerville, Medford, Mays Landing, Lawrenceville, Lambertville.
Other related area codes
The numbers pool is shared with 609, and it covers the same area. You can get a new number here from any of these codes, so request the one you want.
New Jersey also uses 201, 908, 732, 973, 856, 551, 848 and 862.
640 area code questions
What does area code 640 cover?
Calls to 640 ring in New York, New Jersey, around New York-Newark-Jersey City, NY-NJ.
What country code does a 640 number use?
+1. 640 belongs to the North American Numbering Plan. From abroad, you dial +1 640 plus the 7-digit number.
What time is it in the 640 area code?
640 stays on Eastern time.
Which callers use a 640 number?
This code is used by homes, mobiles, local businesses and also by callers who fake a local number. What a 640 number on your screen shows is where it was assigned, and not who is calling.