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Get a local business phone number in Callahan, FL

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

Area code
904
Exchanges
9NANPA-assigned
Carriers
5
Population
1,785Census 2024 est.

Callahan area codes

Callahan town is a Census place in Nassau County, Florida, with an estimated 1,785 residents in 2024. All 9 exchanges NANPA lists for its rate center are in area code 904. 904 is part of an overlay with 324, so a new local number in Callahan may carry any of those codes depending on which have numbers available. Callahan is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 904 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in Callahan, FL
Area codeExchanges hereShareIn service sinceOverlay withTime zone
9049100%1965324Eastern

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

Callahan exchanges by carrier

5 carriers hold the 9 exchanges assigned to Callahan's rate center. Windstream Florida, INC. has the most, with 3. 8 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Callahan can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in Callahan, FL
Carrier (NANPA operating company)ExchangesShare
Windstream Florida, INC.333%
Powertel Jacksonville Licenses, INC.222%
Level 3 Communications, LLC - FL222%
Comcast Ip Phone, LLC111%
Onvoy Spectrum, LLC111%

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.

Callahan phone prefixes

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Callahan. The earliest assignment date recorded in the file for these codes is 2006. 2 of the 9 were assigned in 2020 or later.

Prefixes assigned in Callahan, FL
Area codePrefixes (NXX)
904320, 341, 507, 628, 715, 879, 935, 980, 989

Source: NANPA utilized central office code file.

When Callahan's exchanges were assigned

Assignment dates show when each block of Callahan numbers was added to the local supply.

Callahan, FL: exchanges by decade assigned
Decade assignedExchangesShare
2000s120%
2010s240%
2020s240%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

How local numbers work in Callahan

NANPA ties every exchange to a rate center. For Callahan that is CALLAHAN, so a number from one of these exchanges reads as local to people in and around Callahan.

If your business already has a Callahan number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

The local business market

Callahan is part of the Jacksonville, FL metro area, home to 1.8 million people in 2024. County Business Patterns counted 44,152 business establishments in the Jacksonville, FL metro area in 2023, employing 664,343 people. The largest sectors by establishment count are professional, scientific, and technical services (5,674), retail trade (5,351), and health care and social assistance (5,184).

Selected industries in the Jacksonville, FL metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Physician practices1,58319,61912.4
Offices of real estate agents and brokers1,4012,7742.0
Limited-service restaurants1,37326,79719.5
Full-service restaurants1,26731,38524.8
Law offices9005,8676.5
Residential remodelers7952,3302.9
Landscaping services7945,7077.2
Management consulting firms6672,6744.0

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

Business phone service in Callahan

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 Callahan, 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Jacksonville, FL metro area, 15 users on RingCentral RingEX Core come to $450.00 a month and on Ooma Office Pro $374.25, at month-to-month list prices checked September 28, 2026. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.

Monthly list price for a 15-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$299.00$3,588.00
Quo (Starter)$19.00 per user$285.00$3,420.00
Nextiva (Core)$23.00 per user$345.00$4,140.00
Ooma (Office Pro)$24.95 per user$374.25$4,491.00
Dialpad (Standard)$27.00 per user$405.00$4,860.00
RingCentral (RingEX Core)$30.00 per user$450.00$5,400.00

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 Callahan, FL?

904. All exchanges NANPA lists for Callahan are in 904.

How many phone companies have exchanges in Callahan?

5, holding 9 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Callahan 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 Callahan?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 15 users come to $299.00 a month. For comparison, 15 users on RingCentral RingEX Core list at $450.00 a month (checked September 28, 2026).