← Area code 503
503-478 phone numbers
Numbers 503-478-0000 to 503-478-9999 are assigned to Qwest Corporation in Portland, OR.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Reported numbers in 503-478
- 1 (503) 478-0472 2complaints
- 2 (503) 478-3481 2complaints
- 3 (503) 478-0050 1complaints
- 4 (503) 478-0453 1complaints
- 5 (503) 478-0951 1complaints
- 6 (503) 478-1021 1complaints
- 7 (503) 478-1684 1complaints
- 8 (503) 478-2101 1complaints
- 9 (503) 478-2900 1complaints
- 10 (503) 478-2940 1complaints
- 11 (503) 478-3492 1complaints
- 12 (503) 478-3836 1complaints
- 13 (503) 478-5926 1complaints
- 14 (503) 478-6179 1complaints
- 15 (503) 478-6797 1complaints
- 16 (503) 478-6868 1complaints
- 17 (503) 478-7196 1complaints
- 18 (503) 478-7803 1complaints
- 19 (503) 478-8082 1complaints