Get a local business phone number in Fillmore, UT

Fillmore area codes

Fillmore, in Millard County, Utah, had a Census-estimated population of 2,788 in July 2024. All 4 exchanges NANPA lists for its rate center are in area code 435. Fillmore is in the Mountain time zone.

According to NANPA's dialing-plan data, local calls within 435 are dialed as seven digits and toll calls as 1 plus ten digits.

Who holds Fillmore phone exchanges

4 carriers hold the 4 exchanges assigned to Fillmore's rate center. Cellco Partnership d/b/a Verizon Wireless - Ut has the most, with 1. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Fillmore phone prefixes

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Fillmore. The earliest assignment date recorded in the file for these codes is 2003. 2 of the 4 were assigned in 2020 or later.

When Fillmore's exchanges were assigned

The table groups Fillmore's exchanges by the decade NANPA recorded them as assigned.

Rate centers and local calling in Fillmore

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Fillmore's numbers are rated to the FILLMORE rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Fillmore number.

Keeping an existing Fillmore number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 435 when you pick it.

Businesses around Fillmore

Fillmore is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 95,494 business establishments in Utah in 2023, employing 1,579,974 people. The largest sectors by establishment count are professional, scientific, and technical services (13,540), construction (13,022), and health care and social assistance (10,381).

Setting up a Fillmore business line

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.

Porting a number you already use in Fillmore is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

A 17-person team is the benchmark here, the rounded average establishment size in Utah. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $510.00 a month and Ooma Office Pro $424.15. Callata comes to $339.00 a month for 17 users ($99 a month with 5 users included, then $20 per additional user), below both.