North Plains, OR — rate center
- State
- Oregon
- Active prefixes
- 9
- Carriers
- 7
- Pooled prefixes
- 9
- LATA
- 672
- Metro area
- Portland-Vancouver-Hillsboro, OR-WA MSA
Phone numbers "from North Plains" are, precisely speaking, numbers whose prefixes are anchored to the North Plains rate center of Oregon, under 503, 971.
NANPA records show 9 active prefixes here across 7 carriers. 9 prefixes participate in thousands-block pooling, so blocks of 1,000 numbers are shared between carriers.
The rate center belongs to the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. Routing-wise it sits in LATA 672.
Multiple area codes over one rate center (503/971) is the overlay pattern: same geography, different first three digits.
As always with US numbering: a prefix anchored to North Plains tells you where the block was issued. The person calling may have ported the number, moved away, or be spoofing it entirely — verify callers through independently found contact details.
Prefixes anchored to North Plains
| Prefix | Code holder | Pooled |
|---|---|---|
| 503-389 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 503-433 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | Yes |
| 503-447 | TELEPORT COMMUNICATIONS AMERICA, LLC - OR | Yes |
| 503-647 | QWEST CORPORATION | Yes |
| 503-773 | LEVEL 3 TELECOM OF OREGON, LLC - OR | Yes |
| 503-809 | T-MOBILE USA, INC. | Yes |
FAQ
What area code is North Plains, OR?
North Plains is served by 2 area codes — 503, 971 — which overlay the same territory.
How many prefixes does North Plains have?
9 active NXX prefixes are anchored to this rate center in NANPA records, held by 7 carriers.
Is a call from a North Plains prefix really from North Plains?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.