Prefix 503-863 — Portland, OR
A phone number starting 503-863 was issued in the Portland rate center of OR — part of area code 503.
The assigned code holder is NEW CINGULAR WIRELESS PCS, LLC, operating company number 6010, assigned October 17, 2006. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
A scammer can display 503-863 without ever touching OR. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
Portland is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. For routing purposes it sits in LATA 672. Numbers here keep Pacific time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 503-860 | Portland | NEW CINGULAR WIRELESS PCS, LLC |
| 503-861 | Warrenton | QWEST CORPORATION |
| 503-862 | Sherwood | LEVEL 3 TELECOM OF OREGON, LLC - OR |
| 503-864 | Dayton | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER |
| 503-865 | Portland | QWEST CORPORATION |
| 503-866 | Portland | NEW CINGULAR WIRELESS PCS, LLC |
FAQ
Where is 503-863 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 503-863 numbers?
NEW CINGULAR WIRELESS PCS, LLC 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 503-863 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.