Spam calls from area code 507? Here's how to stop them.
Area code 507 covers Rochester, MN — but the spammers calling from it are faking the number. Here's why, and how to block it free.
If your phone keeps lighting up with area code 507 calls, here's the truth: it's almost certainly not someone in Rochester, MN. It's a robocaller spoofing a southern Minnesota number so the call looks local and you pick up. You hang up, they dial the next 507 number. You're one row in a spreadsheet.
Don't block 507 — screen it. Real calls come from 507 too. Known callers should ring through; unknown 507 numbers should hit a wall first.
What 507 actually is
Across a sample of 18,440 recent FTC reports (through 2026-07-23), consumers logged 37 complaints about calls that displayed a 507 number. Because caller ID is spoofed, almost none actually originated in Rochester — the number is a costume, and this is how often it gets worn against people who share it.
507 is an original-era code. Its middle digit (0) dates it to the 1947–1995 numbering plan, when the middle digit could only be 0 or 1. Codes this old cover long-settled, densely-dialed territory — which is exactly why spoofers love wearing them: a 507 number reads as established and trustworthy.
507 is one of 7 area codes serving Minnesota — the others are 218, 320, 612, 651, 763 and 952 — and 507 specifically covers southern Minnesota. That geographic specificity is the whole point of the spoof: a scammer picks the code that looks closest to you.
One tell the spoof can't hide: time. Numbers on 507 belong to the Central time zone. A "local" 507 call that rings at 3 a.m. almost always originated in a boiler room several zones away, dialing your daytime from their own.
Why 507 keeps calling you
Spoofing engines pull the first six digits of your number and dial matching 507 numbers — the “neighbor” trick. A call sharing your area code and prefix feels safe, so answer rates jump. That's the whole scam: familiarity. Read the mechanics in neighbor spoofing, and why you got picked in why me?
Shut down 507 spam calls — free
- Silence unknown callers. The single biggest win. Set it up on iPhone or Android in 30 seconds.
- Turn on your carrier's filter. Free on AT&T, Verizon, and T-Mobile.
- 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.
- 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 real mark.
Why am I getting spam calls from area code 507?
Because auto-dialers spoof it. They fake a 507 (Rochester, MN) number so the call looks local and you answer. The caller is almost never actually in Rochester — the number is a mask, and an established code like 507 picks it precisely because it looks close to you. See neighbor spoofing.
Is a call from 507 always spam?
No. Real people and businesses in Rochester use 507 too, so blanket-blocking it costs you real calls. Screen instead: known contacts ring through, unknown 507 numbers get checked first.
How do I stop 507 spam calls for free?
Turn on Silence Unknown Callers (iPhone / Android), register on the Do Not Call list, and switch on your carrier's free spam filter. For the ones that still slip through, hand them to the Crew — the AI answers in character (in English, Spanish, Russian, or Mandarin) and wastes the scammer's time instead of yours.