Lookup any area code or prefix (NPA/NXX) in our database using our FREE Area Code Finder Below:

For more info
support@area-codes.com
1-800-425-1169

AreaCode/Prefix (Exchange) 307-304

NPA/Area Code:	307	NXX Use Type:	WIRELESS
NXX/Prefix:	304	NXX Intro Version:	2020-09-17
City:	HILAND	New NPA:
State:	WY	Latitude:	42.5015
County:	NATRONA	Longitude:	-107.8075
County Population:	75450	LATA:	654
ZIP Code:	82638	Overlay:
ZIP Code Pop:	17	Rate Center:	JEFFREY CY
ZIP Code Freq:	0	OCN:	6010
Time Zone:	Mountain (GMT -07:00)	FIPS:	56025
Observes DST:	Unknown	CBSA Code:	16220
CBSA Name:	Casper, WY
Prefix Status:	Active
Carrier/Company:	NEW CINGULAR WIRELESS PCS, LLC

ZIP Code	Pop	Freq	City	State	County	Type
82638	17	0	HILAND	WY	NATRONA	WIRELESS

Learn more on how to use the ZIP Code Information.

Get all NPA NXX records in one easy to use database. Read More.

Only online source to include ZIP Code info, provider company listings, and landline/wireless differentiation.
Instantly download NPANXX data covering the entire US for immediate use (Canada and American Territories included for reference only.)
Easily assign NPANXX codes to each of your sites for automated call routing.
NEW - Additional lat/lon info provided for the center of the serving area - only online source of this valuable information.
Includes inputs from the major telecommunications providers.