Grand Ronde, OR — rate center
- State
- Oregon
- Active prefixes
- 4
- Carriers
- 2
- Pooled prefixes
- 4
- LATA
- 672
- Metro area
- Portland-Vancouver-Hillsboro, OR-WA MSA
Phone numbers "from Grand Ronde" are, precisely speaking, numbers whose prefixes are anchored to the Grand Ronde rate center of Oregon, under 503, 971.
NANPA records show 4 active prefixes here across 2 carriers. 4 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.
With only 4 prefixes, Grand Ronde sits at the small end of Oregon's rate centers — a handful of carrier blocks cover the whole locality, and a number from here is a fairly strong locality signal (before porting is considered).
As always with US numbering: a prefix anchored to Grand Ronde 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 Grand Ronde
| Prefix | Code holder | Pooled |
|---|---|---|
| 503-461 | ONVOY, LLC - OR | Yes |
| 503-879 | UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR | Yes |
FAQ
What area code is Grand Ronde, OR?
Grand Ronde is served by 2 area codes — 503, 971 — which overlay the same territory.
How many prefixes does Grand Ronde have?
4 active NXX prefixes are anchored to this rate center in NANPA records, held by 2 carriers.
Is a call from a Grand Ronde prefix really from Grand Ronde?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.