Area Code 870: Get a Jonesboro Phone Number

870 · Jonesboro

What is the area code for Jonesboro?

The area code for Jonesboro, Arkansas is 870, with overlay code 327 sharing the same geographic footprint. The 870 area code is a North American Numbering Plan geographic code assigned in 1997, covering the Eastern and Southern Arkansas region. It serves approximately 700,000 residents on the Central Time (CT) (UTC-6 / UTC-5 DST).

The 870 area code has 785 assigned central-office prefixes (NXX codes, the three digits after the area code) across 245 rate centers, with numbers allocated to roughly 63 carriers.

At 785 of the ~792 usable central-office prefixes, the 870 area code has about 99% of its numbering capacity assigned, and that near-exhaustion is part of why overlay code 327 was added to the region. See how 870 compares in our NXX prefix allocation analysis across 338 US area codes. (Prefix data: localcallingguide.com / NANPA, 2026.)

Where is area code 870? Location and map area

Area code 870 is located in Arkansas, the United States. Its coverage area centers on Jonesboro and spans the Eastern and Southern Arkansas region. If you received a call from a 870 number, the caller's number was assigned in this area — though with number porting and virtual numbers, the person may be calling from anywhere.

The 870 location sits in Central Time (CT), so local business hours run roughly 9 a.m.–5 p.m. CT. Neighboring Arkansas area codes include 479, 501, 327.

All Jonesboro area codes

Jonesboro is served by 2 area codes across the metro area. 870 is the 1997 addition; the others were added as overlays or for surrounding suburbs.

• 327 — Jonesboro — assigned 2024
• 870 (current page) — Overlay on the same metro, assigned 1997

Cities served by the 870 area code

The 870 area code covers 5 major cities and towns across the Eastern and Southern Arkansas region (AR):

Businesses across Jonesboro and surrounding cities use 870 numbers to project local presence and lift call answer rates. Industry studies of local presence dialing consistently report answer-rate gains of 20–40% over toll-free or out-of-area numbers — a caller ID that matches the recipient's region looks familiar and gets picked up.

870 area code time zone and business hours

The 870 area code is in the Central Time (CT) zone (UTC-6 / UTC-5 DST). Standard business hours in 870 run 9 AM to 5 PM CT.

If you're calling into 870 from a different time zone, factor in the offset. For example, an Eastern Time business calling 870 at 9 AM ET reaches Jonesboro at 8 AM CT — likely outside standard business hours.

History of the 870 area code

The 870 area code was introduced in 1997 when the North American Numbering Plan was first deployed. As Jonesboro grew and number demand increased, overlay code 327 was added to serve the same geographic region — a common solution that avoids forcing existing subscribers to change their numbers.

• 1997 870 entered service
• 2024 327 added to serve the same region

Is the 870 area code safe? Spam and scam calls

870 is a legitimate geographic area code for Jonesboro — it is not a scam code or a premium-rate prefix, and a call from a 870 number is most likely a genuine local caller. The risk is not the area code itself but a tactic called neighbor spoofing: scammers fake their caller ID so an unwanted call appears to come from your own area code, because people answer familiar numbers more readily.

If you get an unexpected 870 call, a few signals point to a likely scam — a pre-recorded message, urgent pressure to act now, a demand for payment by gift card or wire transfer, or anyone asking for passwords, Social Security, or account numbers. Let suspicious calls go to voicemail, never share personal information, and report fraud to the FTC at reportfraud.ftc.gov.

The FCC consumer guide on spoofing explains your rights under the Truth in Caller ID Act. A real Jonesboro business will leave a clear voicemail and will not pressure you.

US carriers verify caller ID with the STIR/SHAKEN framework, which flags many spoofed numbers as "Spam Likely" before they ring. DialPhone 870 numbers are registered for STIR/SHAKEN attestation, so calls from your business are verified as genuine and reach customers without a false spam label. See the DialPhone guide to VoIP security for more.

Why get a 870 area code number for your business?

Getting a 870 number gives your business three measurable advantages over a toll-free or out-of-area number:

1. Local trust signal. Customers in Jonesboro recognize 870 as their home area code. Caller ID matching builds immediate credibility for service businesses, sales outreach, and patient communication.
2. Higher answer rate. Calls from a familiar local area code are answered far more often than unknown or toll-free numbers — industry measurements of local presence dialing put the lift at 20–40%, which matters most for outbound sales, appointment confirmations, and time-sensitive service callbacks.
3. Targeted marketing. Businesses serving Jonesboro and the broader Eastern and Southern Arkansas can advertise a local number across print, radio, billboards, and digital channels for higher conversion than a national 800 number.

For businesses in Jonesboro and surrounding cities, top industries that benefit from local 870 presence include Professional Services, Healthcare, and Retail. DialPhone's AI receptionist is available for every 870 number — never miss a call, even after standard business hours.

How to get a 870 area code number

Setting up a 870 business number with DialPhone takes under 10 minutes:

1. Sign up for a DialPhone plan. Choose any plan starting at $24/user/month. Free 14-day trial, no credit card required.
2. Search available 870 numbers. Filter the DialPhone number inventory by area code, city, or pattern.
3. Choose your number and configure. Assign your new 870 number to a user or team, set up call routing, voicemail, AI receptionist, and business SMS.
4. Port your existing number (optional). Already have a 870 number? Free number porting in 2 to 5 business days with zero service interruption.

New to local numbers? The complete guide to getting a local phone number covers choosing the right area code, porting an existing line, and avoiding spam flags.

870 area code overlay codes

The Eastern and Southern Arkansas region is served by multiple overlay area codes:

Area Code	Coverage
870	Primary area code for Eastern and Southern Arkansas, assigned 1997
327	Overlay — same geography (assigned 2024)

All overlay codes serve the same Jonesboro region. New subscribers may be assigned any available code; existing numbers retain their original prefix.

AI receptionist for 870 area code businesses

Every DialPhone 870 number includes optional AI receptionist coverage, available 24/7. The AI handles calls when your team is unavailable — answering common questions, booking appointments, routing urgent callers to on-call staff, and capturing voicemail with full transcription and intent tagging.

For businesses in Jonesboro that handle high call volume, run extended hours, or need bilingual support (especially valuable in service areas with diverse customer bases), the AI receptionist reduces voicemail backlog and improves first-call resolution.

All area codes in Arkansas

Arkansas has 4 active geographic area codes. The 870 area code is part of the same numbering plan as the codes listed below — calls between them are typically local within the state, depending on the carrier.

Nearby area codes

Related area codes in Arkansas and the Central Time (CT) region:

• 479 area code — Fayetteville, Arkansas
• 501 area code — Little Rock, Arkansas
• 327 area code — Jonesboro, Arkansas
• 205 area code — Birmingham, Alabama
• 210 area code — San Antonio, Texas
• 214 area code — Dallas, Texas

All Arkansas area codes → · Browse all US area codes →

More area codes: ← 865 Knoxville · 872 Chicago →

How this page is verified

DialPhone re-verifies every area code page every 90 days. Area code geography, timezone, and overlay data come from the official North American Numbering Plan Administration (NANPA) database. Pricing reflects the published DialPhone plan tiers — see the pricing page for current details. Number availability varies; check the DialPhone signup flow for live inventory in the 870 region.

What to know before getting a 870 number

• Number availability is finite. Popular Jonesboro area codes can be inventory-constrained — request specific vanity patterns early.
• Porting timing varies. Most 870 ports complete in 2-5 business days; complex multi-line legacy contracts can take 7-10.
• HIPAA tier required for healthcare. The Core $24 plan doesn't include a BAA — healthcare users need Advanced ($34) or above.