Where is Area Code 307?
Area code 307 is exclusively assigned to the state of Wyoming, covering the entire state without any splits or overlays. This area code serves a variety of regions, counties, and major cities, including:
- Cheyenne
- Casper
- Laramie
- Gillette
- Rock Springs
- Sheridan
- Green River
- Evanston
- Riverton
- Jackson
The Wyoming Public Service Commission (WPSC) oversees telecommunications services within the state, ensuring that area code 307 continues to meet the needs of its residents and businesses.
Wyoming Public Service Commission's (WPSC)
2515 Warren Avenue, Suite 300, Cheyenne, WY 82002
Phone: (307)777-7427
Email: wyoming_psc@wyo.gov
What time zone is 307 area code in the USA?
Area code 307 is located in the Mountain Time Zone (MT). This time zone is seven hours behind Coordinated Universal Time (UTC-7). During daylight saving time, which is observed from the second Sunday in March to the first Sunday in November, the time zone shifts to Mountain Daylight Time (MDT), which is UTC-6. The National Institute of Standards and Technology provides precise timekeeping and updates on daylight saving time observance.
History of the 307 Area Code
The 307 area code was established in 1947 as part of the original North American Numbering Plan (NANP). It is one of the few area codes that has remained unchanged since its inception, covering the entire state of Wyoming without any splits or overlays. The stability of area code 307 can be attributed to Wyoming's relatively low population density and demand for new phone numbers. The North American Numbering Plan Administrator (NANPA) manages the allocation of area codes across the United States, ensuring efficient use of numbering resources.
NANPA Mailing Address
One Tower Center Boulevard
Suite 800
East Brunswick, NJ 08816
NANPA Customer Support
Tel: 1-866-623-2282
Email: support@nanpa.com
Fax: 571-363-3838
How Many People Use the 307 Area Code?
The 307 area code serves the entire state of Wyoming, which has a population of 587,000 according to the latest data from the U.S. Census Bureau. This population figure reflects the number of people who may potentially use phone numbers within the 307 area code region.
U.S. Census Bureau
4600 Silver Hill Road, Washington, DC 20233
Tel: 301-763-INFO (4636) or 800-923-8282
Is the 307 Area Code Toll-Free?
Area code 307 is a geographic area code, not a toll-free number. It is specifically assigned to the state of Wyoming and is used for local telephone services within the region. Toll-free numbers in the United States typically begin with the prefixes 800, 888, 877, 866, 855, 844, or 833. The Federal Communications Commission provides guidance on the use and operation of toll-free numbers, ensuring that consumers understand the differences between geographic and toll-free area codes.
Federal Communications Commission
45 L Street NE, Washington, DC 20554
Tel: 1-888-CALL FCC (225-5322)
https://www.fcc.gov/