Area code 435

Area code 435 at a glance

Area code 435 is a geographic area code in Utah, in service since September 21, 1997, according to the North American Numbering Plan Administrator (NANPA). It is not part of an overlay, so every number in its territory starts with 435. It is in the Mountain time zone. The places with the most assigned exchanges include St. George, Logan, Park City, Tooele, and Brigham City. By population, its largest named places are St. George, Logan, Tooele, Cedar City, and Brigham City.

Places served by 435

435 holds 28% of the 1,778 central office codes assigned in Utah, the 2nd most of the state's 3 codes. 77 Census places could be matched to rate centers with 435 exchanges; the most populous are St. George (106,000), Logan (56,770), Tooele (40,919), and Cedar City (40,885). For a storefront or service area inside 435, the place pages show which prefixes are rated local there.

Dialing 435 numbers

According to NANPA's dialing-plan data, local calls within 435 are dialed as seven digits and toll calls as 1 plus ten digits. Seven-digit local dialing is still permitted here, but customers calling from other area codes, and every mobile contact list, use all ten digits.

Who holds 435 exchanges

54 carriers hold the 501 central office codes assigned in 435. Cellco Partnership d/b/a Verizon Wireless - Ut has the most, with 63 (13%). 322 of the codes (64%) 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 435 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. 435 has codes in 113 rate centers. The table lists the rate centers with the most codes, with the matching Census place where the abbreviation could be matched.

435 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). 501 are assigned in 435, 63% of 800. 66 were assigned in 2020 or later.

Using area code 435 for business calls

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

If you already have a number in area code 435, 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.