541
Area code
OR
United States geographic area code, in service since 1995-11-05. Part of the 458/541 overlay complex — ten-digit dialing required.
Statusin service
Introduced1995-11-05
JurisdictionOR, US
Local dialing10D
Time zoneMountain / Pacific
Last verified2026-09-17
Utilization 100.4% of assignable prefixes assigned
As of 09/17/2026
0%795 of ~792 assignable NXX values (200–999 excl. N11)100%
Prefix-level assignment does not equal number-level exhaustion; thousands-block pooling extends capacity. First assignment on record 2001-01-19, most recent 2025-03-07.
Area codes serve rate-center geographies, not municipal boundaries. “OR” identifies the jurisdiction, not an exact city footprint.
Top assignees
Ranked by assigned prefixes · initial assignee ≠ current carrier| Rank | Assignee | Prefixes | Share |
|---|---|---|---|
| 01 | QWEST CORPORATION | 184 | 23.1% |
| 02 | ONVOY, LLC - OR | 70 | 8.8% |
| 03 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 69 | 8.7% |
| 04 | T-MOBILE USA, INC. | 54 | 6.8% |
| 05 | CENTURYTEL OF OREGON, INC. DBA CENTURYLINK | 53 | 6.7% |
| 06 | NEW CINGULAR WIRELESS PCS, LLC | 50 | 6.3% |
| 07 | UNITED STATES CELLULAR - OR | 43 | 5.4% |
| 08 | LEVEL 3 COMMUNICATIONS, LLC - OR | 37 | 4.7% |
| 09 | ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 31 | 3.9% |
| 10 | UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR | 27 | 3.4% |
Important: these are initial assignees from NANPA CO-code records — the carrier a prefix was originally assigned to. Because of number portability, the current serving carrier of any individual number may differ.
Change history
Recorded events for this NPA- 2008-11-19 NPA 458 to Overlay NPA 541 (Oregon)
- 1995-11-05Area code 541 entered service (created from 503).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2008-11-19 | PL-383 ↗ | NPA 458 to Overlay NPA 541 (Oregon) |
| 1995-05-19 | IL-95-05-007 ↗ | NANP-SPLIT OF 503 (OREGON) NUMBERING PLAN AREA (NPA) |