Telephone Area 503. .
Prefix: +1503
This prefix is distributed within the state Oregon
The largest city in the region is Portland
Time Zone: Pacific
Winter time: UTC-8
Summer time: UTC-7
Below on the map, there is indicated the largest city in the telephone area +1-503-...-.... Oregon Portland.
Phone numbers +1-503-YYY-YYYY
| Company | District | Major City | Prefix |
|---|---|---|---|
| New Cingular Wireless PCS | Portland, OR | +1-503200-SSSS | |
| Cellco Partnership DBA Verizon Wireless | Multnomah | Portland, OR | +1-503201-SSSS |
| Usa Mobility Wireless | Multnomah | Portland, OR | +1-503202-SSSS |
| Qwest Corporation | Washington | Portland, OR | +1-503203-SSSS |
| Usa Mobility Wireless | Multnomah | Portland, OR | +1-503204-SSSS |
| Mcimetro Access Transmission Services LLC | Multnomah | Portland, OR | +1-503205-SSSS |
| 360networks (usa) Inc. | Portland, OR | +1-503206-SSSS | |
| Mcimetro Access Transmission Services LLC | Multnomah | Portland, OR | +1-503207-SSSS |
| Lcw Wireless License | Portland, OR | +1-503208-SSSS | |
| Nextel Communications | Multnomah | Portland, OR | +1-503209-SSSS |
| Electric Lightwave DBA Integra Telecom | Multnomah | Portland, OR | +1-503210-SSSS |
| Electric Lightwave DBA Integra Telecom | Multnomah | Portland, OR | +1-503212-SSSS |
| Electric Lightwave DBA Integra Telecom | Multnomah | Portland, OR | +1-503213-SSSS |
| Electric Lightwave DBA Integra Telecom | Multnomah | Portland, OR | +1-503214-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503215-SSSS |
| Qwest Corporation | Washington | Portland, OR | +1-503216-SSSS |
| Electric Lightwave DBA Integra Telecom | Washington | Sherwood, OR | +1-503217-SSSS |
| Electric Lightwave DBA Integra Telecom | Washington | Tualatin, OR | +1-503218-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503219-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503220-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503221-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503222-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503223-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503224-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503225-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503226-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503227-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503228-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503229-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503230-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503231-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503232-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503233-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503234-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503235-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503236-SSSS |
| Usa Mobility Wireless | Multnomah | Portland, OR | +1-503237-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503238-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503239-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503240-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503241-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503242-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503243-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503244-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503245-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503246-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503247-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503248-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503249-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503250-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503251-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503252-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503253-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503254-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503255-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503256-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503257-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503258-SSSS |
| Frontier Communications Northwest | Washington | Beaverton, OR | +1-503259-SSSS |
| Cellco Partnership DBA Verizon Wireless | Multnomah | Portland, OR | +1-503260-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503261-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503262-SSSS |
| Canby Telephone Association | Clackamas | Canby, OR | +1-503263-SSSS |
| Frontier Communications Northwest | Washington | Hillsboro, OR | +1-503264-SSSS |
| Teleport Communications Group | Washington | Tigard, OR | +1-503265-SSSS |
| Canby Telephone Association | Clackamas | Canby, OR | +1-503266-SSSS |
| T-mobile Usa | Multnomah | Portland, OR | +1-503267-SSSS |
| Teleport Communications Group | Washington | Beaverton, OR | +1-503268-SSSS |
| Sprint Spectrum L.p. | Marion | Salem, OR | +1-503269-SSSS |
| Teleport Communications Group | Washington | Beaverton, OR | +1-503270-SSSS |
| Usa Mobility Wireless | Multnomah | Portland, OR | +1-503271-SSSS |
| Centurytel Of Oregon DBA Centurylink | Clackamas | Government Camp, OR | +1-503272-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503273-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503274-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503275-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503276-SSSS |
| Frontier Communications Northwest | Washington | Beaverton, OR | +1-503277-SSSS |
| Cellco Partnership DBA Verizon Wireless | Portland, OR | +1-503278-SSSS | |
| Qwest Corporation | Multnomah | Portland, OR | +1-503279-SSSS |
| Qwest Corporation | Multnomah | Portland, OR | +1-503280-SSSS |
