Prefix 503-212 — Clackamas, OR

NANPA CO code assignment, current as of July 28, 2026.

The 503-212 prefix belongs to area code 503 and is anchored to the Clackamas rate center (OR). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

Clackamas 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 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM (OCN 7172) as the code holder. Because 503-212 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

Caller ID showing 503-212 is not proof the call came from Clackamas: 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

FAQ

Where is 503-212 located?

The prefix is assigned to the Clackamas rate center in OR, area code 503. It is part of the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area.

Which company owns 503-212 numbers?

ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 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 503-212 safe to answer?

The prefix itself says nothing about the caller. Legitimate Clackamas businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.