Prefix 503-207 — Beaverton, OR
The 503-207 prefix belongs to area code 503 and is anchored to the Beaverton rate center (OR). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Beaverton 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.
NANPA's central-office code records list MCIMETRO ACCESS TRANSMISSION SERVICES LLC (OCN 7229) as the code holder. Because 503-207 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Caller ID showing 503-207 is not proof the call came from Beaverton: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 503-204 | Portland | SPOK, INC. |
| 503-205 | Portland | MCIMETRO ACCESS TRANSMISSION SERVICES LLC |
| 503-206 | Portland | ONVOY, LLC - OR |
| 503-208 | Portland | NEW CINGULAR WIRELESS PCS, LLC |
| 503-209 | Portland | T-MOBILE USA, INC. |
| 503-210 | Clackamas | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM |
FAQ
Where is 503-207 located?
The prefix is assigned to the Beaverton rate center in OR, area code 503. It is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area.
Which company owns 503-207 numbers?
MCIMETRO ACCESS TRANSMISSION SERVICES 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 503-207 safe to answer?
The prefix itself says nothing about the caller. Legitimate Beaverton businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.