Prefix 503-206 — Portland, OR
Numbers in the 503-206 prefix are registered to the Portland rate center in OR, inside area code 503. The prefix is the second block of a ten-digit US number (503-206-XXXX) and pins the number to a billing locality.
Code-holder of record: ONVOY, LLC - OR (OCN 750E), assigned March 13, 2006. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 503-206 numbers may be served by different companies.
The rate center lies in the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. The serving LATA is 672. Local time follows the Pacific zone.
Spoofing means this prefix on your screen doesn't guarantee a Portland caller. Verify independently before trusting a request for money or data.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 503-203 | Portland | QWEST CORPORATION |
| 503-204 | Portland | SPOK, INC. |
| 503-205 | Portland | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 503-207 | Beaverton | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 503-208 | Portland | NEW CINGULAR WIRELESS PCS, LLC |
| 503-209 | Portland | T-MOBILE USA, INC. |
FAQ
Where is 503-206 located?
The prefix is assigned to the Portland rate center in OR, area code 503. It is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area.
Which company owns 503-206 numbers?
ONVOY, LLC - OR holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 503-206 safe to answer?
The prefix itself says nothing about the caller. Legitimate Portland businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.