Learn more about this area code and exchange and where the caller may be located.
The phone exchange is the three digits after the area code and before the extension. An example is (303) 535-XXXX where 535 is the exchange number. It enables telephone line extensions to be interconnected in a local area based on a specific geographic assignment.
The (303) 535 exchange is located within the 303 area code in Greeley, CO. It connects landline numbers from the Onvoy carrier in Weld county. Associated zip codes include 80516, 80621.
Potentially, callers could keep their phone numbers even if they move away, so a caller may be located in Greeley, CO or elsewhere. You can use a reverse phone lookup to help find the registered address for a potential caller.
People are Saying:
(303) 535-1553 - May 10th, 2025 9:46pm
I did not recognized the number and did not call it back. They called my phone 5 times in a matter of an hour and a half and did not leave a message. Twice they were back to back calls. This is potentially a scammer or bill collector.
(303) 535-3261 - April 4th, 2025 2:12am
they said they were SPLC, and I don't remember much beyond that
(303) 535-9688 - August 27th, 2025 8:28pm
This woman is a doxxer, fraudster and stalker
(303) 535-5813 - August 29th, 2025 2:58pm
Spam and phishing
(303) 535-1988 - August 22nd, 2023 3:37pm | Reported from Ashburn, VA
This number, along with numerous other 303-535 numbers with different last 4 characters have been calling constantly even after I've told them not to call a***n. I would like to know where to report these calls to get them to stop.
(303) 535-2217 - March 25th, 2022 3:55pm | Reported from Berthoud, CO
same recorded message from various numbers, trying to say they're representing a medical service/home health care service. **** up as soon as the (female) voice identifies by name and then the service she is allegedly representing...... very annoying.