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Get a local business phone number in Baldwin, FL

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

Area code
904
Exchanges
11NANPA-assigned
Carriers
7
Population
1,385Census 2024 est.

What area code is Baldwin, FL?

Baldwin town is a Census place in Duval County, Florida, with an estimated 1,385 residents in 2024. All 11 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 Baldwin may carry any of those codes depending on which have numbers available. Baldwin 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 Baldwin, FL
Area codeExchanges hereShareIn service sinceOverlay withTime zone
90411100%1965324Eastern

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

Who holds Baldwin phone exchanges

7 carriers hold the 11 exchanges assigned to Baldwin's rate center. Onvoy, LLC - FL has the most, with 3. 11 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Carriers holding exchanges in Baldwin, FL
Carrier (NANPA operating company)ExchangesShare
Onvoy, LLC - FL327%
Level 3 Communications, LLC - FL218%
Bandwidth.com CLEC, LLC - FL218%
Bellsouth Telecomm INC d/b/a Southern Bell Tel & Tel19.1%
AT&T Enterprises, LLC19.1%
Fractel, LLC19.1%
Onvoy Spectrum, LLC19.1%

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.

Baldwin phone prefixes

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Baldwin's rate center (BALDWIN). The earliest assignment date recorded in the file for these codes is 2004. 4 of the 11 were assigned in 2020 or later.

Prefixes assigned in Baldwin, FL
Area codePrefixes (NXX)
904257, 266, 299, 467, 474, 605, 712, 851, 906, 922, 941

Source: NANPA utilized central office code file.

When Baldwin's exchanges were assigned

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

Baldwin, FL: exchanges by decade assigned
Decade assignedExchangesShare
2000s222%
2010s333%
2020s444%

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

How local numbers work in Baldwin

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

Keeping an existing Baldwin number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 904 when you pick it.

Who does business near Baldwin

Baldwin 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.

Setting up a Baldwin business line

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 Baldwin 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 15 users, the rounded average establishment size in the Jacksonville, FL metro area. At list prices checked September 28, 2026, that is $374.25 a month on Ooma Office Pro and $450.00 on RingCentral RingEX Core. Callata comes to $299.00 a month for 15 users ($99 a month with 5 users included, then $20 per additional user), below both.

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 Baldwin, FL?

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

How many phone companies have exchanges in Baldwin?

7, holding 11 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Baldwin 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 Baldwin?

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).