Area Code 640: Trenton Area Overlay

Area code 640 is in Trenton Area Overlay, New Jersey. Numbers that start with 640 are based in Trenton, Hamilton, Ewing.

Area code 640 covers Trenton Area Overlay in New Jersey. The primary cities served include Trenton, Hamilton, Ewing.

Area code 640 is primarily associated with Trenton, along with Hamilton, Ewing. It serves the broader Trenton Area Overlay area.

Area code 640 is in New Jersey (NJ). New Jersey has 10 area codes in total.

Area code 640 operates in the Eastern Time Zone. Keep this in mind when scheduling calls with contacts in the Trenton Area Overlay area.

Yes, area code 640 is an overlay of area code 609. Both codes serve the same geographic area, Trenton Area Overlay, and were introduced to meet growing demand for phone numbers. Because 640 is an overlay, 10-digit dialing is required for all local calls within the region.

Yes. Because 640 is an overlay sharing its territory with area code 609, 10-digit dialing, the full area code plus the 7-digit number, is required for all local calls within Trenton Area Overlay.

No, area code 640 is a local geographic area code, not a toll-free number. Standard call charges apply based on your carrier plan. Toll-free area codes include 800, 833, 844, 855, 866, 877, and 888.

Businesses can get a local 640 phone number through Convirza's call tracking platform. A 640 number lets you track inbound calls from Trenton Area Overlay, measure marketing ROI, and analyze conversation data to improve sales performance. Get started with $20 in credits, no credit card required.