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Area codes 304 and 681
Area codes 304 and 681
Area codes 304 and 681
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West Virginia's area codes (red area)

Area codes 304 and 681 are telephone area codes in the North American Numbering Plan (NANP) for the entirety of the U.S. state of West Virginia. The numbering plan area was established in October 1947 with area code 304, as one of the eighty-six original North American area codes. Area code 681 was added to the same area in an overlay plan that took effect on March 28, 2009.

History

[edit]

Due to West Virginia's low population, the state still needed only one area code in the early 21st century. With the growth of telecommunication services, in particular proliferation of cell and mobile phones and fax machines, news reports in 2007 indicated that West Virginia would soon need a new area code.[1][2]

On January 29, 2008, the West Virginia Public Service Commission voted to split numbering plan area 304, while commission chairman dissented in favor of an overlay. The proposed split had Charleston, Parkersburg and points south (Huntington, Bluefield, Beckley) staying with area code 304, while the northern and eastern portions of the state (Wheeling, Morgantown, Martinsburg, Clarksburg) would have received a new area code.[3] Telecommunications service providers were also in favor of an overlay. They wanted to spare their northern West Virginia customers, particularly in rural areas, the burden of having to change telephone numbers, which would have required reprogramming of all cell phones.

Over the following two weeks, numerous state and local government officials and various business interests voiced strong opposition to a split, in favor of the overlay option. Governor Joe Manchin voiced his support of an overlay. Several telecommunications providers officially appealed to the Public Service Commission for an overlay, which was unanimously approved by all three commissioners on February 13, 2008. It was the first example of an entire state previously served by a single code installing an overlay plan.[citation needed]

At one time,[when?] 932 was reserved for use as a future area code in West Virginia, but there has since been a 304-932 exchange code assigned in Charleston. West Virginia is not projected to need another area code in the foreseeable future.[4]

Implementation details of the new area code were announced in NANPA Planning Letter 375 in March 2008.[5] Permissive ten-digit local dialing of numbers in the existing 304 area code began no later than July 26, 2008. During this period, local 304 calls could still be dialed with just seven digits. Mandatory ten-digit local dialing of existing 304 numbers took effect on February 28, 2009. New numbers for area code 681 became available on March 28, 2009, one month after the start of mandatory ten-digit dialing.

References

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Area codes 304 and 681

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Area codes 304 and 681 are the telephone area codes serving the entirety of the U.S. state of within the (NANP). Established in October 1947 as one of the original 86 area codes created by and the , area code 304 originally covered the whole state, including major cities such as Charleston, Huntington, Parkersburg, and Morgantown. Due to projected exhaustion of available telephone numbers by 2008, the West Virginia Public Service Commission approved the introduction of area code 681 as a statewide overlay on , 2008, to accommodate growing demand from residential, business, and telecommunications services. Service for the 681 area code began on March 28, 2009, with permissive 10-digit dialing allowed from July 26, 2008, to February 27, 2009, before becoming mandatory on February 28, 2009, for all local calls within the state regardless of whether the called number uses 304 or 681. This overlay structure means both codes serve the same geographic area—approximately 24,230 square miles across all 55 counties—without requiring customers to change existing 304 numbers, though new assignments may receive 681. The codes operate primarily in the , supporting local calls via 10-digit dialing (area code + seven-digit number) and long-distance calls with the 1+ prefix. As of projections in April 2025, the combined 304/681 numbering plan area is expected to face central office code exhaustion around the first quarter of 2034, potentially necessitating further relief measures.

Overview

Coverage

Area codes 304 and 681 serve the entire state of , encompassing approximately 24,230 square miles of land and water area and all 55 counties. This coverage is uniform without any splits or boundaries, as the codes overlay completely across the state's urban centers, rural communities, and mountainous terrain. Originally established in 1947, area code 304 provided exclusive service to the whole state until 2009, when area code 681 was introduced as an overlay to share the identical geographic territory. These area codes serve approximately 1.77 million residents (2024 U.S. Census Bureau estimate).

Time zones

The entire service area of area codes 304 and 681, covering the state of , observes the , with Eastern Standard Time (EST) at UTC-5 and Eastern Daylight Time (EDT) at UTC-4 during the observance period. West Virginia's location entirely east of the positions it wholly within the , without any internal divisions or splits into other zones. This uniformity ensures that all telephone communications within the 304 and 681 area codes occur within the same local time framework, facilitating seamless intra-state calling without time adjustments. However, interstate calls to adjacent states, such as —which spans both the Eastern and Central Time Zones—necessitate awareness of potential one-hour differences depending on the destination region. Daylight Saving Time observance in aligns with federal standards established by the , commencing at 2:00 a.m. on the second Sunday in March and concluding at 2:00 a.m. on the first Sunday in November, effective since 2007. This schedule promotes consistency in time coordination across the for and daily operations within the area codes' service region.

History

Establishment of 304

Area code 304 was established on October 1, 1947, as one of the original 86 numbering plan areas (NPAs) in the (NANP), developed by the American Telephone and Telegraph Company () to standardize long-distance telephone numbering across the , , and other participating regions. The NANP's initial framework assigned these codes to facilitate efficient operator-assisted and eventual direct-dialed calls, with 304 specifically designated for the entire state of . The assignment of 304 to West Virginia reflected the state's relatively low population of approximately 1.88 million residents in 1947 and its predominantly rural character, which minimized the immediate need for multiple area codes or splits within the state. Under the early NANP design principles, single-area-code jurisdictions like West Virginia received codes with a middle digit of 0, distinguishing them from multi-area-code regions assigned middle digits of 1; this structure optimized routing in electromechanical switching systems by allowing quicker detection of the area code's end during long-distance calls. The code 304, with its relatively low digits (3-0-4), aligned with preferences for efficient dialing on rotary phones and central office signaling, though West Virginia's modest size and density meant it was not prioritized for the lowest possible codes reserved for high-traffic urban centers. At , central office prefixes (NXX codes) within 304 were limited by the of the , which restricted assignable combinations to avoid conflicts with operator and long-distance signaling (e.g., excluding those starting with or 1). This setup primarily supported service across the state's sparse , with provisions for emerging services like teletypewriters, but no overlays were required until the late due to slow growth in demand. The code's standalone coverage endured for decades, underscoring the NANP's initial success in allocating resources based on projected needs in less densely populated areas.

Introduction of 681 overlay

The impending exhaustion of telephone numbers in the 304 area code prompted proposals for relief measures as early as 2007, with projections indicating that available central office codes would be depleted by the end of . This demand surge was largely attributed to the widespread adoption of cellular phones, pagers, and dedicated lines, which consumed numbering resources at an accelerated rate beyond traditional growth. In early 2008, the Public Service Commission (PSC) initially considered a geographic split that would divide the state roughly along a line separating northern and eastern regions from the southwestern portion, assigning a new area code to the northern half while retaining 304 for the south. However, following stakeholder input and reconsideration, the PSC rejected this split on February 13, 2008, opting instead for an all-services overlay to minimize disruption to existing customers, preserve local calling boundaries, and avoid the logistical challenges of reassigning numbers across communities. The overlay plan for area code 681, covering the entire state of , was unanimously approved by the West Virginia Public Service Commission on February 13, 2008, representing the first overlay implementation for a that had operated under a single area code since the inception of the . Service for the 681 area code commenced on March 28, 2009, with new telephone numbers potentially assigned under 681, while existing 304 numbers remained unchanged; initially, no thousands-block number pooling was employed to facilitate the transition.

Implementation

Ten-digit dialing mandate

Following the approval of the 681 area code as an overlay for 304, the Public Service Commission of West Virginia (PSC) mandated ten-digit dialing for all local calls within the state to accommodate the shared use of both area codes. Starting February 28, 2009, callers were required to dial the full ten digits—consisting of the three-digit area code (either 304 or 681) followed by the seven-digit telephone number—for all intrastate local calls, regardless of whether the call was to a 304 or 681 number. This change eliminated the previous option of seven-digit dialing, with calls placed using fewer than ten digits failing and prompting an automated message to redial correctly. A permissive transition period ran from July 26, 2008, to February 27, 2009, during which both seven-digit and were accepted to ease the shift, allowing users time to adjust without immediate service disruptions. Equipment updates were necessary for various systems, including private branch exchanges (PBXs), fax machines, modems, speed-dial features on cell phones and landlines, and security or alarm systems, all of which required reprogramming to incorporate the area code before the mandatory date. Outgoing long-distance calls remained unchanged, still requiring the "1" prefix followed by ten digits, and dialing "1" before a local ten-digit call did not convert it to long-distance or incur tolls. The PSC, in coordination with telephone carriers, launched public awareness campaigns to inform residents and businesses, including FAQs, press releases, and a toll-free (1-800-344-5113) for inquiries, emphasizing updates to contact lists, , and automated systems. Special services like 211, 411, 711, , and 911 continued to be accessible with their existing abbreviated dialing. This mandate enabled the immediate assignment of 681 numbers starting , 2009, without requiring geographic splits or changes to existing 304 numbers, thereby preserving service continuity for current subscribers while expanding capacity.

Number assignment and exhaustion

The overlay of area code 681 on 304, effective March 28, 2009, introduced approximately 800 new central office prefixes to the statewide numbering plan area in , providing critical relief from the impending exhaustion of available numbers under the original 304 code that had been projected for the late . As of 2025, the combined 304/681 numbering resources are approaching their limits again due to sustained demand growth, with the Administration (NANPA) forecasting potential exhaustion in the first quarter of 2034 absent additional measures. To mitigate this, thousands-block number pooling and donations—practices that enable carriers to return underutilized blocks of 1,000 numbers for redistribution—have been actively implemented in the 304/681 area since 2009, enhancing overall resource efficiency across the . No further overlays or splits are currently planned for 304/681. While NPA code 932 was previously reserved by as a potential future relief option for , it is now assigned and in use as the 304-932 exchange serving Charleston.

Geography

Major cities served

The area codes 304 and 681 primarily serve West Virginia's urban centers, which drive much of the state's economic activity and concentration. These codes cover the entire state as an overlay system, ensuring uniform telephone service across all major cities without code-specific geographic assignments. Residents and businesses in these areas use both area codes interchangeably for local calling, reflecting the integrated numbering plan implemented to address resource exhaustion. Among the key cities is Charleston, the state capital with a of approximately 46,482 as of July 1, 2024. As the seat of , Charleston functions as a central hub for administration, policy-making, and related services, while also supporting , , and cultural institutions that bolster the regional . Huntington, with an estimated population of 44,942 in 2024, ranks as another prominent city served by these codes. Situated along the , it operates as a vital port facility, handling significant cargo volumes including , chemicals, and aggregates, which supports transportation and trade industries essential to the state's logistics network. Morgantown, home to about 30,490 residents in 2024, stands out as a university town anchored by (WVU). The institution drives education, research, and innovation, contributing to a vibrant focused on higher education, healthcare, and sectors that attract students and professionals from across the region. Other notable cities include Parkersburg, with a 2024 population of around 28,834, known for its role in the chemical industry, particularly through facilities producing performance polymers and fluoroproducts that support national supply chains. Wheeling, estimated at 26,060 residents as of July 1, 2024, represents in the northern panhandle, with a historical emphasis on , pipe distribution, and industrial fabrication that continues to sustain local employment. Further south, Beckley, with approximately 16,515 people as of July 1, 2024, serves as a gateway to the southern , where mining operations historically and currently form the economic backbone, alongside emerging and service industries. Collectively, these urban areas highlight the diverse economic landscape served by area codes 304 and 681, spanning , river-based , higher education, chemicals, , and resource extraction like . The concentration of population and activity in these cities has fueled demand for numbers, necessitating the overlay to maintain service reliability.

Regional divisions

Area codes 304 and 681 serve the entire state of , encompassing its four primary geographic regions: the Valley, the , the Allegheny Highlands, and the Potomac Section. These divisions reflect the state's diverse physiography within the Appalachian Mountain system, influencing local topography, drainage patterns, and economic activities, all unified under the same telephone numbering plan. The Valley occupies the western border of the state, forming part of the broader . This region features low elevations around 1,000 feet (305 meters) along the , which serves as a major navigable waterway supported by 13 locks and dams spanning 350 miles (563 kilometers). It includes significant tributaries like the Kanawha and Monongahela rivers, fostering historical industrial development in areas such as and . The covers the western two-thirds of , characterized by layers that slope gently westward from the at about 20 feet (6 meters) per mile. This area is marked by narrow, winding ridges and deep valleys, with dramatic features like the New River Gorge dropping to 1,100 feet (335 meters) in depth. The plateau's rugged terrain supports forestry, extraction, and . In the central portion, the Allegheny Highlands extend from Monroe and Greenbrier counties northward to the border. Elevations here often surpass 4,500 feet (1,372 meters), with valleys plunging up to 1,000 feet (305 meters) and flat-topped ridges formed by erosion-resistant rock. This highland region is renowned for its scenic beauty, including peaks like Spruce Knob, the state's highest point at 4,863 feet (1,482 meters), and offers prime habitats for and . The Potomac Section lies along the eastern border, incorporating parts of the and the Ridge and Valley Province. It features igneous and metamorphic rocks in the , transitioning to parallel sandstone ridges and limestone valleys in the Ridge and Valley area, which are dotted with caves and mineral springs. Draining about 15 percent of the state's water eastward to the , this region includes the Eastern Panhandle and supports , wineries, and historical sites near the Virginia and Maryland borders.

References

  1. https://www.allareacodes.com/west_virginia_area_codes.htm
  2. http://www.psc.state.wv.us/10_DigitDialing/
  3. https://www.allareacodes.com/304
  4. https://www.allareacodes.com/681
  5. https://www.zip-codes.com/area-code/area-code-681.asp
  6. https://www.nanpa.com/sites/default/files/2025-04/2025-1NPAExhaustProjectionsFinal.pdf
  7. https://www.britannica.com/place/West-Virginia
  8. https://www.nanpa.com/npa-relief/planning-letters
  9. https://www.register-herald.com/news/local_news/seven-prefixes-assigned-to-new-area-code/article_bb0fe823-a79b-5795-b811-f22faa9e0c65.html
  10. https://www.census.gov/data/tables/time-series/demo/popest/2020s-state-total.html
  11. https://www.timeanddate.com/worldclock/usa/west-virginia
  12. https://dep.wv.gov/WWE/watershed/bio_fish/Documents/20110829GLIMPSSFinalWVDEPDOI.pdf
  13. https://www.timetemperature.com/tzus/kentucky_time_zone.shtml
  14. https://www.timeanddate.com/laws/us/energypolicyact2005.html
  15. https://code.wvlegislature.gov/5-1-25/
  16. https://www.nist.gov/pml/time-and-frequency-division/popular-links/daylight-saving-time-dst
  17. https://www.nanpa.com/sites/default/files/planning_letters/PL-038.pdf
  18. https://www.lincmad.com/table1947.html
  19. https://horizonelectronics.com/north-american-numbering-plan/
  20. https://www.nanpa.com/sites/default/files/reports/annual-reports/2023_NANPA_AnnualReport_0.pdf
  21. http://www.psc.state.wv.us/press/2008/press_20080129.pdf
  22. http://www.psc.state.wv.us/scripts/WebDocket/ViewDocument.cfm?CaseActivityID=232755&NotType=%27WebDocket%27
  23. https://puc.idaho.gov/fileroom/cases/tele/GNR/GNRT1506/ordnotc/20151102FINAL_ORDER_NO_33414.PDF
  24. http://www.psc.state.wv.us/10_DigitDialing/DialingFAQ02122009.pdf
  25. https://www.theintelligencer.net/news/community/2014/11/681-area-code-not-as-prevalent-as-expected-in-panhandle/
  26. https://docs.fcc.gov/public/attachments/DOC-408489A1.pdf
  27. https://reports.nanpa.com/public/npa_report.csv
  28. https://www.wirefly.com/area-codes/west-virginia/charleston
  29. https://www2.census.gov/programs-surveys/popest/tables/2020-2024/cities/totals/SUB-IP-EST2024-POP-54.xlsx
  30. https://charlestonwv.gov/government/city-departments/moecd/EconomicDevelopment
  31. https://portofwestvirginia.com/
  32. https://www.wvu.edu/
  33. https://www.chemours.com/en/about-chemours/global-reach/washington-works
  34. https://wtov9.com/news/local/manufacturing-growing-in-west-virginias-northern-panhandle
  35. https://www.wvencyclopedia.org/entries/387
  36. https://www.wvencyclopedia.org/entries/1083
  37. https://www.infoplease.com/us/states/west-virginia
  38. https://www.wvencyclopedia.org/entries/2037
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