Prefix 503-459 — Portland, OR

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

Area code
503
Prefix (NXX)
459
Rate center
Portland
State
Oregon
Time zone
Pacific
Code holder
LEVEL 3 TELECOM OF OREGON, LLC - OR
OCN
7537
Pooled
Yes (thousands-block pooling)
Assigned
2002-04-25
LATA
672

503-459 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 — 503-459 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 LEVEL 3 TELECOM OF OREGON, LLC - OR, operating company number 7537, assigned April 25, 2002. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.

Neighboring prefixes

Prefixes adjacent to 503-459
PrefixRate centerCode holder
503-456 Beaverton MCIMETRO ACCESS TRANSMISSION SERVICES LLC
503-457 Tillamook CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR
503-458 Knappa CENTURYTEL OF OREGON, INC. DBA CENTURYLINK
503-460 Portland QWEST CORPORATION
503-461 Grand Ronde ONVOY, LLC - OR
503-462 Clackamas TELEPORT COMMUNICATIONS AMERICA, LLC - OR

FAQ

Where is 503-459 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 503-459 numbers?

LEVEL 3 TELECOM OF OREGON, LLC - OR 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 503-459 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.