Area code 350

Where area code 350 is

NANPA lists 350 as an in-service geographic area code for California, first put into service on November 28, 2022. It is an overlay: 350 and 209 cover the same territory, so neighbors on the same street can have different area codes. It is in the Pacific time zone. The places with the most assigned exchanges include Stockton, Modesto, Atwater, Manteca, and Lodi. By population, its largest named places are Stockton, Modesto, Tracy, Merced, and Manteca.

Cities and towns in area code 350

350 holds 0.40% of the 22,087 central office codes assigned in California, the 37th most of the state's 41 codes. 21 Census places could be matched to rate centers with 350 exchanges; the most populous are Stockton (325,000), Modesto (221,000), Tracy (100,000), and Merced (96,073). For a storefront or service area inside 350, the place pages show which prefixes are rated local there.

Dialing 350 numbers

According to NANPA's dialing-plan data, local calls within 350 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits. Ten-digit local dialing means the area code is part of how customers save and recognize your number, so print it in full everywhere.

Who holds 350 exchanges

17 carriers hold the 88 central office codes assigned in 350. Onvoy, LLC - CA has the most, with 20 (23%). 88 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.

Where 350 numbers are rated

NANPA assigns each central office code to a rate center, the local calling area that decides whether a call is local or toll. 350 has codes in 41 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

350 code assignments over time

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). 88 are assigned in 350, 11% of 800. 86 were assigned in 2020 or later.

Using area code 350 for business calls

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 350, 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.