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Get a local business phone number in El Dorado, AR

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

Area code
870
Exchanges
24NANPA-assigned
Carriers
10
Population
16,657Census 2024 est.

Area codes in El Dorado

With 16,657 residents in the Census 2024 estimate, El Dorado sits in Union County, Arkansas. All 24 exchanges NANPA lists for its rate center are in area code 870. 870 is part of an overlay with 327, so a new local number in El Dorado may carry any of those codes depending on which have numbers available. El Dorado is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 870 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Area codes with exchanges in El Dorado, AR
Area codeExchanges hereShareIn service sinceOverlay withTime zone
87024100%1997327Central

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

Who holds El Dorado phone exchanges

10 carriers hold the 24 exchanges assigned to El Dorado's rate center. Southwestern Bell has the most, with 6. 17 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in El Dorado can come from any of these blocks; once it is yours, porting lets it move between providers.

Carriers holding exchanges in El Dorado, AR
Carrier (NANPA operating company)ExchangesShare
Southwestern Bell625%
New Cingular Wireless PCS, LLC - Il625%
Cellco Partnership d/b/a Verizon Wireless - Ar417%
T-mobile USA, INC.28.3%
Nuso, LLC14.2%
CSC Voice, LLC14.2%
Comcast Ip Phone, LLC14.2%
Level 3 Communications, LLC - Ar14.2%
CSC Wireless, LLC14.2%
Onvoy, LLC - Ar14.2%

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.

Local prefixes for El Dorado

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to El Dorado. The earliest assignment date recorded in the file for these codes is 2003. 5 of the 24 were assigned in 2020 or later.

Prefixes assigned in El Dorado, AR
Area codePrefixes (NXX)
870288, 309, 310, 312, 314, 315, 440, 444, 452, 618, 639, 665, 677, 713, 789, 814, 862, 863, 864, 865, 866, 875, 881, 918

Source: NANPA utilized central office code file.

When El Dorado's exchanges were assigned

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

El Dorado, AR: exchanges by decade assigned
Decade assignedExchangesShare
2000s222%
2010s222%
2020s556%

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

Rate centers and local calling in El Dorado

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

Keeping an existing El Dorado number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 870 when you pick it.

Who does business near El Dorado

El Dorado is part of the El Dorado, AR micropolitan area, home to 37,008 people in 2024. County Business Patterns counted 1,036 business establishments in the El Dorado, AR micropolitan area in 2023, employing 15,851 people. The largest sectors by establishment count are retail trade (175), other services (except public administration) (131), and health care and social assistance (120).

Selected industries in the El Dorado, AR micropolitan area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Limited-service restaurants3467419.8
Physician practices323109.7
Full-service restaurants2330713.3
Insurance agencies and brokerages19——
Law offices17——
Offices of certified public accountants14735.2
Electrical contractors1329322.5
Child day care services1321716.7

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

A El Dorado 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.

If you already have a number in El Dorado, 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.

A 15-person team is the benchmark here, the rounded average establishment size in the El Dorado, AR micropolitan area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $450.00 a month and Ooma Office Pro $374.25. 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 El Dorado, AR?

870. All exchanges NANPA lists for El Dorado are in 870.

How many phone companies have exchanges in El Dorado?

10, holding 24 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing El Dorado 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 El Dorado?

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).