Silverton, OR — rate center
Silverton 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.
The rate center currently carries 5 working prefixes, held by 4 different carriers. Pooling applies to 4 of them — individual thousands-blocks may belong to different companies.
Routing-wise it sits in LATA 672.
Because 503, 971 all serve this territory, two Silverton numbers can look completely different while being neighbors — check the prefix, not just the area code.
Silverton is a small rate center: 5 prefixes across 4 carriers serve it. Small localities like this often keep the same blocks for decades, so the prefix-to-place mapping tends to be stable.
A Silverton prefix on caller ID is a starting point, not proof of origin — numbers travel with their owners and displays can be spoofed. Use official callback numbers for anything sensitive.
Prefixes anchored to Silverton
| Prefix | Code holder | Pooled |
|---|---|---|
| 503-873 | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | No |
| 503-874 | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | Yes |
FAQ
What area code is Silverton, OR?
Silverton is served by 2 area codes — 503, 971 — which overlay the same territory.
How many prefixes does Silverton have?
5 active NXX prefixes are anchored to this rate center in NANPA records, held by 4 carriers.
Is a call from a Silverton prefix really from Silverton?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.