- City / exchange
- Gresham
- Province / state
- Oregon
- Country
- United States
- Carrier
- Onvoy, LLC - Or
- Line type
- Likely VoIP / virtual number
- OCN
- 750E
- Status
- Assigned
- Assigned
- 09/03/2026
- Number pooling
- Yes (block shared between carriers)
503-918 phone numbers
Gresham, Oregon, United States · Onvoy, LLC - Or
Reported numbers in 503-918
No numbers in this block have been reported by visitors yet.
What does the 503-918 prefix tell you?
Every North American number is area code + prefix + line. The prefix 503-918 was assigned to Onvoy, LLC - Or on 09/03/2026 for the Gresham exchange. A call from this block usually originates from a Onvoy, LLC - Or customer in or near Gresham, but caller ID can be spoofed to show any number.