The 837 area code is currently linked to aggressive calls about switching electric companies. Telemarketers push hard to change your utility provider often without your clear permission.
Look up any suspicious number using our scam and spam phone number lookup database. It includes over 29 million Do Not Call and robocall complaints reported to the Federal Trade Commission.
Getting calls from 837 area code and wonder if it's a scam? You're not alone. Scammers frequently spoof phone numbers to trick you into answering. Here is the most common area code 837 scam based on user comments data:
Residents in the 837 area code are receiving a high volume of harassing calls from spammers attempting to get you to switch electric companies. These callers are persistent, with one user reporting 14 calls in a single week, and often use robocalling technology that hangs up if an answering machine picks up.
Legitimate utility providers do not use aggressive, high-frequency robocalls from "unknown" numbers to solicit new customers. Official communications about your service or switching options are typically sent through the mail or from clearly identified, official company phone numbers.
"Spammer to switch electric companies. Comes up as 'unknown name.' Called me 14 times over a week's period. I finally figured out how to block the number."
Frequently Asked Questions about Area Code 201 Scams and Spam Calls
No, area code 837 is not a scam. It's a legitimate telephone area code serving millions of legitimate residents and businesses in California, United States. Area code 837 is a general purpose code that has been in service since January 31, 2025.
Most common 837 scam types are:
You're likely experiencing "Neighbor Spoofing." Scammers fake their caller ID to display local or familiar numbers. If you live in or near California, or have a 837 phone number yourself, scammers know you're more likely to answer what appears to be a local call.
Calling back to unknown spam number may incur premium charges or at least confirm your phone number is active and lead to more spam and scam calls.
There are three main ways to reduce spam calls:
It's definitely possible to block all specific area code phone numbers. However, we do not recommend this option because it would also prevent friends, family, doctors, and legitimate businesses from reaching you.
Other California area codes where scam and spam calls are regularly reported: