The 870 area code covers Jonesboro, Pine Bluff and 213 more places in Arkansas.
Area code 870 is in Arkansas, on Central Time. In the 870 area, phone numbers are given out most in Craighead County, then Jefferson and Union counties. It has been in service since April 14, 1997. 327 covers the same area, so two neighbours can have different area codes.
- Where
- 8 counties in Arkansas, mostly Craighead County, Jefferson County and Union County
- Time zone
- Central Time
- In service since
- April 14, 1997
- Shares its area with
- 327 (since 2024)
- Prefixes in use
- 785
- How to dial
- Local calls need all 10 digits: 870-555-0142.
Find out who called you from an 870 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (870) number is on today, use our free carrier lookup.
Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.
Free & rate-limited. No signup required to try.
Jonesboro holds 6% of the phone prefixes in area code 870.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 785 prefixes in use shows where 870 numbers are actually given out.
- Jonesboro46 prefixes, 6%
- Pine Bluff45 prefixes, 6%
- El Dorado24 prefixes, 3%
- Harrison18 prefixes, 2%
- Blytheville15 prefixes, 2%
- Paragould14 prefixes, 2%
- Arkadelphia13 prefixes, 2%
- Texarkana12 prefixes, 2%
Also served: West Memphis, Camden, Batesville and Forrest City and 203 smaller places.
Southwestern Bell (AT&T) holds the most phone number prefixes in area code 870: 154 of 785.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 785 prefixes in use in 870 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Southwestern Bell (AT&T)AT&T's landline company | 154 | 20% |
| AT&T MobilityMobile network | 107 | 14% |
| BrightspeedLandline company | 85 | 11% |
| WindstreamLandline company | 80 | 10% |
| Level 3 (Lumen)Lumen's business and wholesale network | 47 | 6% |
| E. Ritter Communications | 22 | 3% |
| 40 other carriers | 290 | 37% |
76% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
870 has been overlaid once since 1997.
1997
870 starts on April 14, 1997, split off from 501.
2024
On February 20, 2024, 327 is added on top of 870, so new numbers here can get either code.
An 870 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 870 are 501, 479 and 901.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 870.
Where is area code 870?
870 covers Jonesboro, Pine Bluff, El Dorado and Harrison and 211 more places in Arkansas. In the 870 area, phone numbers are given out most in Craighead County, then Jefferson and Union counties.
What state is area code 870 in?
Arkansas. 870 is an Arkansas area code on Central Time.
What cities use area code 870?
The places holding the most 870 prefixes are Jonesboro, Pine Bluff, El Dorado, Harrison, Blytheville, Paragould, Arkadelphia and Texarkana, out of 215 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 870?
No single phone company owns 870. NANPA's records show Southwestern Bell (AT&T) holds the most 870 prefixes, 154 of 785, followed by AT&T Mobility and Brightspeed. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 870 in?
870 is on Central Time.
When did area code 870 start?
870 went into service on April 14, 1997, when it was split off from 501.
Is 870 the same area as 327?
Yes. 327 (since 2024) covers the same ground as 870. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial an 870 number?
Local calls need all 10 digits: 870-555-0142.
Is 870 a toll-free number?
No. 870 is a regular area code for Jonesboro and Pine Bluff in Arkansas, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 870?
The closest are 501 (Little Rock, Arkansas), 479 (Fort Smith, Arkansas), 901 (Memphis, Tennessee) and 662/471 (Tupelo, Mississippi), measured between the centres of each area.
Who called me from an 870 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 870 a scam?
870 is a real Arkansas area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.