Prefix 503-927 — Portland, OR
Numbers in the 503-927 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 (503-927-XXXX) and pins the number to a billing locality.
Code-holder of record: T-MOBILE USA, INC. (OCN 6529), assigned January 12, 2006. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 503-927 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 |
|---|---|---|
| 503-924 | Beaverton | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
| 503-925 | Sherwood | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER |
| 503-926 | Portland | NEW CINGULAR WIRELESS PCS, LLC |
| 503-928 | Portland | NEW CINGULAR WIRELESS PCS, LLC |
| 503-929 | Portland | NEW CINGULAR WIRELESS PCS, LLC |
| 503-930 | Salem | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR |
FAQ
Where is 503-927 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 503-927 numbers?
T-MOBILE USA, INC. 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 503-927 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.