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Get a local business phone number in Holbrook, AZ

Holbrook's area code, prefixes and carriers from NANPA records, and how to put a Holbrook number in front of your customers.

Area code
928
Exchanges
5NANPA-assigned
Carriers
4
Population
4,837Census 2024 est.

Holbrook area codes

Holbrook, in Navajo County, Arizona, had a Census-estimated population of 4,837 in July 2024. All 5 exchanges NANPA lists for its rate center are in area code 928. Holbrook is in the Mountain time zone.

According to NANPA's dialing-plan data, local calls within 928 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Holbrook, AZ
Area codeExchanges hereShareIn service sinceOverlay withTime zone
9285100%2001noneMountain

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Who holds Holbrook phone exchanges

4 carriers hold the 5 exchanges assigned to Holbrook's rate center. Cellco Partnership d/b/a Verizon Wireless - Az has the most, with 2. 4 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.

Carriers holding exchanges in Holbrook, AZ
Carrier (NANPA operating company)ExchangesShare
Cellco Partnership d/b/a Verizon Wireless - Az240%
Level 3 Communications, LLC - Az120%
Smith Bagley INC. d/b/a Cellular One of NE Arizona120%
Citizens Telecom CO of White Mountains INC.120%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Holbrook phone prefixes

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Holbrook. The earliest assignment date recorded in the file for these codes is 2002. None were assigned in 2020 or later.

Prefixes assigned in Holbrook, AZ
Area codePrefixes (NXX)
928241, 297, 313, 414, 524

Source: NANPA utilized central office code file.

What makes a number local to Holbrook

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

Keeping an existing Holbrook number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 928 when you pick it.

The local business market

Holbrook is part of the Show Low, AZ micropolitan area, home to 110,000 people in 2024. County Business Patterns counted 1,860 business establishments in the Show Low, AZ micropolitan area in 2023, employing 20,516 people. The largest sectors by establishment count are retail trade (280), health care and social assistance (252), and accommodation and food services (249).

Selected industries in the Show Low, AZ micropolitan area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants821,22615.0
Limited-service restaurants721,41519.7
Offices of real estate agents and brokers55551.0
Physician practices543256.0
Hotels and motels4559013.1
Residential remodelers371103.0
Plumbing, heating and air-conditioning contractors361935.4
Dental offices312217.1

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

A Holbrook number on Callata

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Holbrook 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.

The comparison below uses 11 users, the rounded average establishment size in the Show Low, AZ micropolitan area. At list prices checked September 28, 2026, that is $274.45 a month on Ooma Office Pro and $330.00 on RingCentral RingEX Core. Callata comes to $219.00 a month for 11 users ($99 a month with 5 users included, then $20 per additional user), below both.

Monthly list price for an 11-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$219.00$2,628.00
Quo (Starter)$19.00 per user$209.00$2,508.00
Nextiva (Core)$23.00 per user$253.00$3,036.00
Ooma (Office Pro)$24.95 per user$274.45$3,293.40
Dialpad (Standard)$27.00 per user$297.00$3,564.00
RingCentral (RingEX Core)$30.00 per user$330.00$3,960.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Holbrook, AZ?

928. All exchanges NANPA lists for Holbrook are in 928.

How many phone companies have exchanges in Holbrook?

4, holding 5 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Holbrook business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Holbrook?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 11 users come to $219.00 a month. For comparison, 11 users on RingCentral RingEX Core list at $330.00 a month (checked September 28, 2026).