Rainier, OR — rate center
- State
- Oregon
- Active prefixes
- 6
- Carriers
- 5
- Pooled prefixes
- 5
- LATA
- 672
- Metro area
- Portland-Vancouver-Hillsboro, OR-WA MSA
Rainier is a telephone rate center in Oregon served by area codes 503, 971. A rate center is the locality the phone industry uses to anchor numbers for billing; every prefix listed below is registered here.
NANPA records show 6 active prefixes here, held by 5 different carriers. Pooling applies to 5 of them — individual thousands-blocks may belong to different companies.
The rate center belongs to the Portland-Vancouver-Hillsboro, OR-WA Metropolitan Statistical Area. Routing-wise it sits in LATA 672.
Because 503, 971 all serve this territory, two Rainier numbers can look completely different while being neighbors — check the prefix, not just the area code.
As always with US numbering: a prefix anchored to Rainier 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 Rainier
| Prefix | Code holder | Pooled |
|---|---|---|
| 503-395 | TELEPORT COMMUNICATIONS AMERICA, LLC - OR | Yes |
| 503-556 | QWEST CORPORATION | No |
FAQ
What area code is Rainier, OR?
Rainier is served by 2 area codes — 503, 971 — which overlay the same territory.
How many prefixes does Rainier have?
6 active NXX prefixes are anchored to this rate center in NANPA records, held by 5 carriers.
Is a call from a Rainier prefix really from Rainier?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.