Bay City, OR — rate center
In NANP numbering, Bay City, Oregon is a rate center — the anchor point for local numbers. It is reached through 503, 971 (multiple area codes serve it).
The rate center currently carries 3 working prefixes, held by 3 different carriers. Pooling applies to 2 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 Bay City numbers can look completely different while being neighbors — check the prefix, not just the area code.
Bay City is a small rate center: 3 prefixes across 3 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 Bay City 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 Bay City
| Prefix | Code holder | Pooled |
|---|---|---|
| 503-300 | CHARTER IP ENABLED SERVICES, LLC | Yes |
| 503-377 | UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR | No |
FAQ
What area code is Bay City, OR?
Bay City is served by 2 area codes — 503, 971 — which overlay the same territory.
How many prefixes does Bay City have?
3 active NXX prefixes are anchored to this rate center in NANPA records, held by 3 carriers.
Is a call from a Bay City prefix really from Bay City?
Not necessarily. The prefix marks where the number block was issued; porting, VoIP and spoofing all detach calls from that geography.