Home · Spam by area code · Spam calls from area code 870? Here’s how to stop them.
Spam by area code

Spam calls from area code 870? Here’s how to stop them.

Area code 870 covers Jonesboro, AR — but the spammers calling you aren’t there. They’re faking it. Here’s the fix.

If your phone keeps lighting up with calls from area code 870, here’s the truth: it’s almost certainly not someone in Jonesboro, AR. It’s a robocaller spoofing a eastern Arkansas number so the call looks local and you pick up. You hang up, they dial the next 870 number. You are one row in a spreadsheet.

The move isn’t to block 870. Real calls come from 870 too. The move is to screen it — known callers ring through, unknown 870 numbers hit a wall first.

Why 870 specifically?

Spoofing engines pull the first six digits of your number and dial out matching 870 numbers — the “neighbor” trick. A call that shares your area code and prefix feels safe, so answer rates jump. That’s the entire scam: familiarity. Learn the mechanics in neighbor spoofing and why you got picked in why me?

Shut down 870 spam calls — free

  1. Silence unknown callers. The single biggest win. Set it up on iPhone or Android in 30 seconds.
  2. Turn on your carrier’s filter. Free on AT&T, Verizon, and T-Mobile.
  3. Register on the Do Not Call list. Won’t stop scammers, but it makes the legal ones back off and gives you standing to report.
  4. Weaponize the rest. The calls that still get through? Hand them to the Crew — an AI answers in character and wastes the scammer’s time on a call they thought was a live mark.

Why am I getting spam calls from area code 870?

Because scammers spoof it. Auto-dialers fake a 870 (Jonesboro) number so the call looks local and you’re more likely to answer. The caller is almost never actually in Jonesboro — the number is a mask. This is called neighbor spoofing.

Is a call from 870 always spam?

No. Real people and businesses in Jonesboro use 870 too. That’s exactly why blanket-blocking the whole area code backfires — you’d miss real calls. The fix is screening: let known contacts ring through and send unknown 870 numbers to a screener first.

How do I stop 870 spam calls for free?

Turn on Silence Unknown Callers (iPhone / Android), register on the Do Not Call list, and add your carrier’s free spam filter. For the ones that still slip through, hand them to the Crew and let AI waste their time instead of yours.

More in this guide

Spam calls from area code 209? Here’s how to stop them.Getting spam calls from 209? It’s neighbor spoofing — not really Stockton, CA. Here’s why, and how to block 209 spam calls free on iPhone & Android.Read the guide →Spam calls from area code 213? Here’s how to stop them.Getting spam calls from 213? It’s neighbor spoofing — not really Los Angeles, CA. Here’s why, and how to block 213 spam calls free on iPhone & Android.Read the guide →Spam calls from area code 279? Here’s how to stop them.Getting spam calls from 279? It’s neighbor spoofing — not really Sacramento, CA. Here’s why, and how to block 279 spam calls free on iPhone & Android.Read the guide →Spam calls from area code 310? Here’s how to stop them.Getting spam calls from 310? It’s neighbor spoofing — not really Los Angeles, CA. Here’s why, and how to block 310 spam calls free on iPhone & Android.Read the guide →Spam calls from area code 323? Here’s how to stop them.Getting spam calls from 323? It’s neighbor spoofing — not really Los Angeles, CA. Here’s why, and how to block 323 spam calls free on iPhone & Android.Read the guide →Spam calls from area code 408? Here’s how to stop them.Getting spam calls from 408? It’s neighbor spoofing — not really San Jose, CA. Here’s why, and how to block 408 spam calls free on iPhone & Android.Read the guide →Spam calls from area code 928? Here’s how to stop them.Getting spam calls from 928? It’s neighbor spoofing — not really Flagstaff, AZ. Here’s why, and how to block 928 spam calls free on iPhone & Android.Read the guide →Spam calls from area code 479? Here’s how to stop them.Getting spam calls from 479? It’s neighbor spoofing — not really Fort Smith, AR. Here’s why, and how to block 479 spam calls free on iPhone & Android.Read the guide →Spam calls by area codeThe full pillar — every guide in this series.Read the guide →
Get Spam Slayer

The blocker that fights back.

Free tier blocks known spam and screens unknown callers. The Crew ($4.99/mo) answers spam with AI characters and turns every call into a clip.