Prefix 503-367 — Portland, OR
503-367 identifies a block of numbers in Portland, OR, within the 503 area code. Every US prefix is tied to exactly one rate center; this one is Portland.
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.
Treat the on-screen number as a hint, not evidence — 503-367 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
The assigned code holder is NEW CINGULAR WIRELESS PCS, LLC, operating company number 6010, assigned December 8, 2004. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 503-364 | Salem | QWEST CORPORATION |
| 503-365 | Salem | QWEST CORPORATION |
| 503-366 | Saint Helens | QWEST CORPORATION |
| 503-368 | Nehalem | NEHALEM TELECOMMS, INC. DBA NEHALEM TEL & TEL |
| 503-369 | Saint Helens | NEW CINGULAR WIRELESS PCS, LLC |
| 503-370 | Salem | QWEST CORPORATION |
FAQ
Where is 503-367 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 503-367 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 503-367 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.