Prefix 503-501 — Portland, OR
Numbers in the 503-501 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 (503-501-XXXX) and pins the number to a billing locality.
Code-holder of record: NEW CINGULAR WIRELESS PCS, LLC (OCN 6010), assigned March 10, 2008. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 503-501 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 |
|---|---|---|
| 503-498 | Stafford-sandy | TELEPORT COMMUNICATIONS AMERICA, LLC - OR |
| 503-499 | Portland | QWEST CORPORATION |
| 503-500 | Portland | TELTRUST CORPORATION - OR |
| 503-502 | Portland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR |
| 503-503 | Sherwood | ONVOY, LLC - OR |
| 503-504 | Portland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR |
FAQ
Where is 503-501 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 503-501 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 503-501 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.