Area code 640

Area code 640 at a glance

Area code 640 is a geographic area code in New Jersey, in service since September 17, 2018, according to the North American Numbering Plan Administrator (NANPA). It is an overlay: 640 and 609 cover the same territory, so neighbors on the same street can have different area codes. It is in the Eastern time zone. The places with the most assigned exchanges include Atlantic City, Pleasantville, Trenton, Princeton, and Allentown. By population, its largest named places are Trenton, Egg Harbor, Atlantic City, Ewing, and Princeton.

Cities and towns in area code 640

640 holds 2.3% of the 5,628 central office codes assigned in New Jersey, the 10th most of the state's 10 codes. 25 Census places could be matched to rate centers with 640 exchanges; the most populous are Trenton (91,193), Egg Harbor (48,538), Atlantic City (38,959), and Ewing (35,858). For a storefront or service area inside 640, the place pages show which prefixes are rated local there.

Ten-digit and seven-digit dialing in 640

According to NANPA's dialing-plan data, local calls within 640 are dialed as ten digits (area code plus number) and toll calls as ten digits (area code plus number). Ten-digit local dialing means the area code is part of how customers save and recognize your number, so print it in full everywhere. NANPA's dialing-plan note for this code reads: "1+10 digits for HNPA calls permissible at each service provider's discretion."

Carriers with 640 numbers

23 carriers hold the 132 central office codes assigned in 640. New Cingular Wireless PCS, LLC - DC has the most, with 33 (25%). 132 of the codes (100%) are pooled, meaning the code holder shares blocks of 1,000 numbers with other carriers instead of using all 10,000 itself. Numbers can move between carriers through porting, so a code's holder tells you where the block started, not where every number lives now.

Local calling areas in 640

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 640 has codes in 35 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

How full is area code 640?

An area code has 800 possible central office codes that start with 2 through 9, a few of which are reserved (such as N11 service codes and 555). 132 are assigned in 640, 17% of 800. 116 were assigned in 2020 or later.

A local 640 number on Callata

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

If you already have a number in area code 640, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.