Area Code 308 – Nebraska
The phone area code for Nebraska is 308 (international format +1308). Browse local exchange codes (NXX) and carrier assignments below.
📞 Exchange Codes (NXX) for Area Code 308
Select a central office code to view local carrier data and detailed information
📍 Geographic Location of Nebraska
Geographic Coverage and Jurisdiction
Area code 308 is a geographic North American Numbering Plan (NANP) code serving the western two-thirds of the state of Nebraska, United States. It is one of the state's three original area codes, assigned in 1947, and covers a vast rural expanse that includes the cities of North Platte, Kearney, Grand Island, Hastings, and Scottsbluff. The numbering plan area (NPA) 308 encompasses 62 of Nebraska's 93 counties, stretching from the Kansas border in the south to the South Dakota border in the north, and from the Colorado/Wyoming borders in the west to roughly the 98th meridian in the east. Major highways such as Interstate 80 and U.S. Route 30 traverse this region, which is characterized by agriculture, transportation hubs, and the Sandhills.
Dialing Formats and Caller Instructions
For local callers within the 308 area code, standard local dialing requires the full 10-digit number (area code + 7-digit subscriber number), as mandated by the Federal Communications Commission (FCC) for all NANP codes. For example, to call a landline in Kearney, one would dial 308-234-5678. For international callers, the E.164 format is used: +1 308 234 5678, where +1 is the country calling code for the United States. When calling from outside the U.S., replace the leading '1' with the international access prefix (e.g., 011 from most countries).
Overlay and Numbering Resources
Currently, area code 308 does not have an overlay, meaning it is the sole area code for its geographic region. However, due to projected exhaust, the Nebraska Public Service Commission has considered implementing an overlay (likely 531) in the future. An overlay would require 10-digit dialing for all local calls, a practice already in effect. Numbering resources within 308 are administered by the North American Numbering Plan Administrator (NANPA) and assigned to various local exchange carriers (LECs), including incumbent carriers like Windstream and CenturyLink, as well as competitive local exchange carriers (CLECs) and VoIP providers.
Technical Considerations
As a geographic code, 308 is tied to rate centers that determine local calling areas and interexchange (toll) boundaries. Calls between different rate centers within 308 may incur long-distance charges depending on the subscriber's tariff. Wireless numbers with a 308 prefix are non-geographic in practice, as mobile users can retain their numbers when moving (local number portability). For VoIP users, 308 numbers can be assigned without a physical presence in the region, but emergency services (911) routing is based on the registered address. All NANP numbers, including 308, must comply with the FCC's rules for number portability and anti-slamming protections.