Prefix 503-344 — Clackamas, OR
A phone number starting 503-344 was issued in the Clackamas rate center of OR — part of area code 503.
The assigned code holder is LEVEL 3 COMMUNICATIONS, LLC - OR, operating company number 3234. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
A scammer can display 503-344 without ever touching OR. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
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.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 503-341 | Portland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR |
| 503-342 | Clackamas | LEVEL 3 COMMUNICATIONS, LLC - OR |
| 503-343 | Clackamas | LEVEL 3 COMMUNICATIONS, LLC - OR |
| 503-345 | Portland | LEVEL 3 COMMUNICATIONS, LLC - OR |
| 503-346 | Portland | QWEST CORPORATION |
| 503-347 | Portland | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR |
FAQ
Where is 503-344 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 503-344 numbers?
LEVEL 3 COMMUNICATIONS, 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 503-344 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.