Area code
Area code 539 — Tulsa, OK
Oklahoma · in service since April 1, 2011
Area code 539 covers parts of Oklahoma; the place with the most of its prefixes is Tulsa. It is an overlay: 918 serves the same area, so neighbors can have different area codes.
Overlay, same area: 918
Local time in Tulsa
Spam reports from Sep 23 – Oct 22, 2026
Low #364 of 461 codes
131 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneCentral Time
- Local calls10 digits
- Prefixes254 assigned
- Runs out~2Q 2048
- Unwanted call?Block & report
Spam call reports about 539 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 7 |
| Sep 14 | 25 |
| Sep 21 | 29 |
| Sep 28 | 36 |
| Oct 5 | 17 |
| Oct 12 | 20 |
| Oct 19 (4 days) | 35 |
Compared with all codes
- Robocalls
- 80%all codes 75%
- Callers with the same code
- 14%all codes 35%
- Rank by complaints
- #364of 461 · bottom quarter
- FCC complaints, Oct 2025 – Sep 2026
- 174 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 36 21% | |
| Dropped call or no message | 26 15% | |
| Calls pretending to be government, businesses, or family and friends | 12 7% | |
| Medical & prescriptions | 6 4% | |
| Charities | 2 1% | |
| Computer & technical support | 1 1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Oklahoma | 64 38% | |
| Texas | 17 10% | |
| California | 14 8% | |
| Florida | 12 7% | |
| Virginia | 6 4% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 539 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| TULSA | Tulsa | spans 4 counties | 59 |
| BROKENARRW | Broken Arrow | spans 2 counties | 8 |
| BARTLESVL | Bartlesville | spans 2 counties | 5 |
| MUSKOGEE | Muskogee | Muskogee County | 5 |
| TAHLEQUAH | Tahlequah | Cherokee County | 5 |
| BRISTOW | Bristow | Creek County | 4 |
| OKMULGEE | Okmulgee | spans 2 counties | 4 |
| PRYOR | — | — | 4 |
| CHECOTAH | Checotah | McIntosh County | 3 |
| GROVE | Grove | Delaware County | 3 |
Plus 107 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
NANPA record
- Location
- Oklahoma
- Assigned by NANPA
- January 4, 2010
- Local dialing
- 10 digits (NANPA: 10D)
- NANPA planning letters
- PL-403
Source: NANPA, NPA database of Oct 24, 2026.
Is 539 running out of numbers?
Previous forecast (October 2025): 2043, moved later by 5 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 539 prefixes
The five largest of 40 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Onvoy, LLC | 35 14% | |
| Level 3 Communications, LLC | 28 11% | |
| Fractel, LLC | 22 9% | |
| United States Cellular | 21 8% | |
| Bandwidth.com CLEC, LLC | 18 7% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 539
What area code is 539?
An Oklahoma area code, in service since April 1, 2011.
Where is 539 area code, and what time zone is it in?
Tulsa, OK; Central Time.
Why am I getting spam calls from 539?
131 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 539 get a new area code?
NANPA forecasts exhaust in 2Q 2048; no relief planning listed.