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Area code 908
Area code 908
Area code 908
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Numbering plan areas and area codes of New Jersey

Area code 908 is a telephone area code in the North American Numbering Plan (NANP) in the northern part of the U.S. state of New Jersey. The numbering plan area (NPA) comprises communities in Union County, Somerset County, northern parts of Middlesex County, Hunterdon County, Warren County, and parts of Morris County as well as some cell phones in Monmouth and Ocean Counties.

History

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Area code 201, originally the only area code for New Jersey when the first nationwide telephone numbering plan was created in 1947, had been the area code for all of northern and central New Jersey since 1956.

In June 1989, New Jersey Bell announced a split of numbering plan area 201 to create a new area code, 908, in North Jersey. During a permissive dialing period, which ended on June 8, 1991, existing telephone numbers in the service area could be dialed with area codes 201 or 908.[1][2][3] Customers in the remaining 201 area had to prefix existing and new numbers in 908 with 1-908. At the time of the split, 1.5 million access lines were served by the new area code.[citation needed]

On January 1, 1997, 908 was reduced to its western portion, forming area code 732 in the central-eastern region of New Jersey.[4] It was the penultimate area code added in the X0X format when 909 was added a year later in California.

Middlesex County is largely 908 in South Plainfield and parts of Edison (particularly Inman Avenue and north of Oak Tree Road) and Piscataway (particularly the New Market area near Plainfield). 908 and the Delaware Valley's 856 are the only area codes in the state that have yet to be overlaid.

Before October 2021, area code 908 had telephone numbers assigned for the central office code 988. In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.[5]

See also

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References

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Area code 908

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from Grokipedia
Area code 908 is a area code of the (NANP) serving north-central portions of in the United States, primarily covering parts of Union, Somerset, Middlesex, Hunterdon, Warren, and Morris counties. It includes major cities and communities such as Elizabeth, Plainfield, Linden, Phillipsburg, and Somerville, encompassing a mix of urban, suburban, and rural areas in the state's western and northern central regions. The area code operates in the and supports local calling with required since 2021. Established on , 1990, as a split from the original area code 201—which initially covered the entire state of —908 was introduced to meet the increasing demand for telephone numbers in the densely populated northern and central areas. At the time of its creation, it was the 135th area code activated in the NANP and one of only two new codes added that year. Due to rapid growth in needs, including the rise of machines, pagers, and additional lines, the area code faced exhaustion by the mid-1990s, leading to a further split on June 1, 1997, that created area code 732 for the central-eastern portions of the original 908 territory. This adjustment reduced 908's footprint to its current boundaries, focusing on the more westerly and northwesterly regions. Today, area code 908 serves a population of approximately 1.16 million residents (2020 census) across its jurisdictions, with no current overlays or planned changes, though ongoing population and technological developments could prompt future adjustments. It plays a vital role in connecting communities in this economically diverse area, which features industrial hubs like Elizabeth—New Jersey's fourth-largest city—and agricultural zones in Hunterdon and Warren counties. The code's implementation reflects broader trends in the evolution of the U.S. telephone system, adapting to suburban expansion and the integration of mobile and internet-based communications.

Coverage Area

Counties Served

Area code 908 serves north-central , encompassing Union County in full, along with , Hunterdon, and Warren counties entirely. These counties are situated in the central and northwestern regions of the state, bordered by more urbanized areas to the east and rural landscapes to the west. Union County, the most populous within this area code, had approximately 575,000 residents as of the 2020 U.S. , contributing significantly to the region's suburban density. Somerset County, with around 345,000 residents, offers a mix of affluent suburbs and open spaces in the same census data. Hunterdon County, fully covered and known for its rural character, recorded about 129,000 residents, while Warren County, in the northwest, had roughly 110,000. Partial coverage extends to northern portions of County, excluding southern areas reassigned to area code 732, and select townships in Morris County, such as Mount Olive and Roxbury. These partial inclusions reflect the irregular boundaries shaped by assignments rather than strict county lines. Morris County, with a total population of approximately 509,000, sees only limited service under 908, primarily in its southwestern townships. Northern , part of a county totaling about 863,000 residents, includes areas like parts of Edison and Piscataway but omits more southern locales. The current county coverage was influenced by the 1997 split of the original 908 area code, which transferred southern portions—including much of , all of Monmouth and counties, and parts of —to the new 732 area code, preserving 908 for the northern and western segments. This adjustment aligned the numbering plan more closely with growing suburban demands while respecting established county boundaries to minimize disruption. Adjacent area codes like 732 to the south and 201/551 to the northeast define the eastern and southern limits of 908's territory.
CountyCoverage TypeApproximate 2020 Population Served
UnionFull575,000
Full345,000
HunterdonFull129,000
WarrenFull110,000
Morris (partial)Southwestern townshipsLimited (subset of 509,000 total)
(partial)Northern portionsLimited (subset of 863,000 total)

Cities and Towns

Area code 908 serves several major population centers in north-central , with Elizabeth standing out as the largest city in the region and the state. Located in Union County, Elizabeth has a population of approximately 140,413 residents as of 2024 and functions as a key port and industrial hub, hosting the Newark-Elizabeth Marine Terminal, which is integral to the Port of New York and 's operations as the East Coast's busiest container port. Plainfield, also in Union County, is a diverse with around 56,507 inhabitants in 2024, known for its multicultural community and historical significance as an early industrial center. Somerville, the county seat of County, has about 14,428 residents as of 2024 and serves as an administrative and small-business focal point in the region. Other notable towns within the 908 area include Phillipsburg in Warren County, which has a population of roughly 15,393 in 2024 and lies near the border, supporting cross-state commerce and manufacturing. Flemington, in Hunterdon County, is home to approximately 4,905 people as of 2024 and features a prominent that draws through , shops, and sites like the Union Hotel and Hunterdon County Courthouse. Bridgewater, in Somerset County, boasts around 46,871 residents in 2024 and acts as a commercial center, anchored by the expansive shopping mall along the I-287 corridor. Smaller localities and partial coverage areas round out the 908 footprint, such as Hackettstown in Warren County with about 10,182 residents in 2024, a rural town with agricultural ties. Portions of larger Middlesex County municipalities like Edison and also fall under 908, particularly northern sections where phone exchanges overlap with the 732 area code, reflecting the area's transitional urban-suburban character.

History

Establishment from 201

In April 1989, New Jersey Bell announced plans to split the overburdened numbering plan area (NPA) 201 to create the new area code 908, responding to rapid and in northern that had strained the existing telephone numbering system. This decision was driven by post-World War II suburban expansion, which saw New Jersey's population surge by over 1.1 million residents in each decade from 1950 to 1970—the largest gains in state history—leading to heightened demand for telephone lines in the 1980s as households and businesses proliferated in central and northern regions. The new area code 908 went into service on November 1, 1990, marking it as the 135th area code established in the North American Numbering Plan. A permissive dialing period followed, allowing residents in the affected areas to use either the 201 or 908 prefix for local calls until the mandatory switchover on June 8, 1991, to facilitate a smooth transition and minimize disruptions during the changeover process. Initially, area code 908 covered central and northern , encompassing all of Union, , Hunterdon, Warren, Monmouth, and counties, as well as portions of and Morris counties, while excluding the immediate suburbs of , which remained under 201. The split affected approximately 1.1 million residents, requiring them to update their phone numbers and impacting local calling patterns during the transition, though the overlap in boundaries with the original 201 area allowed for temporary dual dialing.

1997 Split to Create 732

In 1996, the Board of Public Utilities approved a geographic split of area code 908 to create new area code 732, following a request from Bell Atlantic, the local telephone carrier and successor to New Jersey Bell. The decision addressed the impending exhaustion of available telephone numbers in the 908 numbering plan area, driven by the 1990s boom that included widespread adoption of cellular phones, pagers, faxes, and modems. This growth had accelerated demand beyond projections, with 908 and the adjacent 201 area code expected to run out of numbers by the following year. The split took effect with a permissive dialing period beginning on June 1, 1997, allowing callers to reach numbers in the affected region using either 908 or 732. Mandatory use of 732 became required after December 1, 1997, after which dialing 908 for those numbers would trigger a recorded announcement directing callers to redial with the new code. Test calls to verify in the new area code were available starting May 1, 1997, by dialing 732-663-0285. Under the new boundaries, area code 908 was retained for the northern and central portions of its original territory, including most of Union, , Hunterdon, Warren, portions of , and parts of Morris counties. Area code 732 was assigned to the southeastern portion, encompassing all of Monmouth and counties, southern County, and portions of County. The boundary changes split several municipalities, such as , Linden, Rahway, and Elizabeth, with some parts remaining in 908 or 201 while others shifted to 732; for example, Rahway converted entirely to 732. The split affected a large portion of central , converting existing 908 numbers in the designated areas to 732 and requiring updates to phone systems, directories, and across residential and business lines. An overlay plan, which would have introduced 732 without changing existing numbers, was rejected in favor of the geographic split to preserve number portability in the retained 908 region. The change faced significant challenges, including public and resistance due to the inconvenience of boundaries that did not align with municipal lines, leading to split communities and confusion over local identity in central . Businesses estimated update costs ranging from $2,000 for small operations to $80,000 for larger ones, covering reprints of , business cards, signs, and reprogramming; Bell Atlantic itself opposed the split, arguing it would impose undue burdens compared to an overlay.

Current Status

Numbering Plan Details

Area code 908 operates within the (NANP), where telephone numbers follow the standard 10-digit format of NPA-NXX-XXXX, with NPA representing the three-digit area code and NXX the central office prefix. As part of the NANP, 10-digit dialing has been mandatory for all local calls in the 908 area code since October 24, 2021, to accommodate the national Lifeline and ensure compatibility with emergency services; this change was implemented by the Board of Public Utilities in coordination with the FCC. There are no unique international access code requirements specific to 908, as it adheres to standard NANP conventions for outbound international dialing using the "+" prefix or 011. The area code supports approximately 323 active central office prefixes (NXX codes), based on assigned numbering capacity as of December 31, 2023, with examples including 908-222 serving Elizabeth and 908-725 serving Phillipsburg. These prefixes are assigned to various carriers, including Verizon New Jersey, , and wireless providers like , through the NANPA's central office code administration process. Numbering resource utilization stands at 56% for 908, with 1.81 million numbers in active use out of a total capacity of roughly 3.23 million, indicating moderate remaining capacity and no immediate risk of central office code exhaustion. Unlike overlaid area codes such as 732, no relief planning—such as a split or overlay—is currently underway for 908. Local calling boundaries in 908 are defined by 28 distinct rate centers, which determine intra-area calling rates and portability; prominent examples include Elizabeth (serving Union County areas) and Somerville (covering parts of Somerset County). These rate centers facilitate number pooling among 58 operating company numbers (OCNs), allowing efficient allocation of resources to wireline, , and VoIP providers while minimizing fragmentation. As of 2025, the numbering plan for 908 remains stable, with ongoing monitoring by projecting exhaust in the first quarter of 2033 (based on data as of March 2025); however, growth in VoIP and mobile subscriptions could accelerate demand, potentially projecting exhaustion around the mid-2030s absent conservation measures or new code introductions, per general FCC and forecasting methodologies. The current prefix distribution reflects historical splits, such as the 1997 separation from 201/732, which preserved a balanced allocation for northern and central .

Time Zone and Usage

Area code 908 operates entirely within the of the , observing Eastern Standard Time (EST) during standard periods and Eastern Daylight Time (EDT) during , which correspond to UTC-5 and UTC-4 offsets, respectively. This positioning ensures seamless synchronization with adjacent major urban centers, including to the northeast and to the southwest, supporting efficient cross-regional business and personal communications. Dialing within area code 908 mandates 10-digit local calling, requiring users to prefix the seven-digit number with the area code for all intra-area calls, a procedure implemented statewide for landlines in October . Out-of-state long-distance calls necessitate the addition of the prefix "1" before the area code and number, adhering to national standards. The area code predominantly facilitates and mobile telephone services across its coverage, with notable high-volume business applications in industrial and port-adjacent locales such as Elizabeth, where economic activity drives substantial commercial needs. These services are fully integrated with the national 911 emergency response system, enabling rapid access to public safety resources without specialized protocols. Culturally, area code 908 embodies a sense of "" identity, setting it apart from the northern connotations of 201 and the southern associations of 609, often invoked in local discussions of regional character. Businesses in the region frequently utilize vanity numbers—such as those spelling out memorable words or phrases—to foster community ties and local pride. Regulatory authority for area code 908 resides with the Board of Public Utilities (BPU), which handles state-level matters, in coordination with the (FCC) for national numbering policies. As of 2025, no distinctive restrictions or overlays beyond standard national guidelines apply to its administration.

References

  1. https://nj.gov/bpu/newsroom/2021/approved/20211020.html
  2. https://www.allareacodes.com/908
  3. https://www.nanpa.com/sites/default/files/planning_letters/PL-037.pdf
  4. https://www.zipdatamaps.com/area-code-908
  5. https://www.teloz.com/blog/908-area-code/
  6. https://www.sent.dm/resources/area-code-908-new-jersey
  7. https://datacommons.org/place/geoId/3458350
  8. https://datacommons.org/place/geoId/3423700
  9. https://visitnj.org/city/flemington
  10. https://www.newjersey-demographics.com/bridgewater-demographics
  11. https://www.newjersey-demographics.com/hackettstown-demographics
  12. https://www.nytimes.com/1989/04/27/nyregion/inside-470589.html
  13. https://www.newjerseyalmanac.com/post-war-suburbanization.html
  14. https://www.nytimes.com/1991/06/02/nyregion/201-609-and-now-oh-my-908.html
  15. https://www.digifind-it.com/rahway/data/progress/1996/1996-11-14.pdf
  16. https://www.newspapers.com/newspage/222502314/
  17. https://www.nanpa.com/numbering-resources/npa-code-relief-planning
  18. https://docs.fcc.gov/public/attachments/DOC-408489A1.pdf
  19. https://localcallingguide.com/lca_prefix.php?npa=908
  20. https://www.nanpa.com/reports/npa-relief-planning-reports
  21. https://localcallingguide.com/lca_listexch.php?npa=908
  22. https://www.nanpa.com/sites/default/files/2025-03/2024_NANPA_AnnualReport.pdf
  23. https://www.nanpa.com/sites/default/files/2025-04/2025-1NPAExhaustProjectionsFinal.pdf
  24. https://24timezones.com/908/area-code
  25. https://www.areacodelocations.info/9/908.html
  26. https://www.voiply.com/phone-numbers/908-area-code-new-jersey
  27. https://www.tapinto.net/towns/roselle/sections/government/articles/changes-coming-for-landlines-in-856-and-908-area-codes
  28. https://www.dialmycalls.com/local-phone-numbers/us/908-elizabeth
  29. https://www.wirefly.com/area-codes/new-jersey/elizabeth
  30. https://www.911.gov/calling-911
  31. https://www.tapinto.net/towns/plainfield/sections/community-life/articles/if-central-jersey-does-exist-is-plainfield-part-of-it
  32. https://gbpn.com/new-jersey-phone-numbers/908-local-area-code
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