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{{Infobox company
| name = Adtran, Inc.
| logo = Adtran logo.svg
| image = AdtranExteriors-0210.jpg
| image_caption = Headquarters – Huntsville, AL
| type = [[Public company|Public]]
| traded_as = {{NASDAQ|ADTN}}<br />{{FWB|QH9}}<br />[[SDAX]] component
| ISIN = {{ISIN|sl=n|pl=y|US00486H1059}}
| industry = {{ubl|Telecommunications|Fiber Networking|Voice and Data Equipment}}
| foundation = {{start date and age|1985}}<ref>{{Cite web |url=https://finance.yahoo.com/q/pr?s=ADTN |title=ADTRAN, Inc. (ADTN) Company Profile & Facts – Yahoo Finance}}</ref>
| location = [[File:Flag of the United States.svg|20px]] [[Huntsville, Alabama|Huntsville]], [[Alabama]],<ref>[http://www.adtran.com/ About Us]; TBE website; retrieved April 25, 2007</ref> US
| key_people = Tom Stanton ([[Chief executive officer|CEO]])
| revenue = {{increase}} [[United States Dollar|US$]]1.1 Billion <small>(''FY 2023'')</small><ref name="ADTRAN 2023 10-K">{{Cite web |url=https://www.sec.gov/Archives/edgar/data/926282/000095017024032089/adtn-20231231.htm |title=ADTRAN, Inc. (ADTN) 2023 Annual Report Form (10-K)}}</ref>
| operating_income = {{decrease}} [[United States Dollar|US$]]-221.3 Million <small>(''FY 2023'')</small><ref name="ADTRAN 2023 10-K" />
| net_income = {{decrease}} [[United States Dollar|US$]]-8.3 Million <small>(''FY 2023'')</small><ref name="ADTRAN 2023 10-K" />
| assets = {{increase}} [[United States dollar|US$]]736.9 Million <small>(''FY 2023'')</small><ref name="ADTRAN 2023 10-K" />
| equity = {{decrease}} [[United States dollar|US$]]593.8 Million <small>(''FY 2023'')</small><ref name="ADTRAN 2023 10-K" />
| num_employees = 1405 <ref>{{Cite web |url=https://www.adtran.com/social |title=Adtran Social}}</ref>
| parent = ADTRAN Holding
| footnotes =
| homepage = {{URL|http://adtran.com}}
}}
'''Adtran, Inc.''' is an American fiber networking and telecommunications company headquartered in [[Huntsville, Alabama|Huntsville]], [[Alabama]]. It is a vendor of networking solutions that address a range of applications. Its customers include communications service providers, governments, enterprises and utilities.
== History ==
Adtran was founded in 1985 by [[Mark C. Smith]],<ref name=notice>{{cite news |title=Mark C. Smith |url=http://obits.al.com/Huntsville/DeathNotices.asp?Page=LifeStory&PersonId=86989971 |work=[[The Huntsville Times]] |date=March 29, 2007 |access-date=2007-06-21}}</ref> Lonnie S. McMillian,<ref>"[http://www.crn.com/networking/198701242;jsessionid=JB41OBC4UUUHEQSNDLPCKHSCJUNN2JVN ADTRAN Co-Founder, Chairman Passes Away]  {{webarchive|url=https://web.archive.org/web/20071119084052/http://www.crn.com/networking/198701242%3Bjsessionid%3DJB41OBC4UUUHEQSNDLPCKHSCJUNN2JVN |date=November 19, 2007 }}"</ref> and Larry Owen,
and began operations in 1986, following the [[AT&T divestiture]] of the [[Regional Bell Operating Companies]] (RBOCs). It supplied network equipment to both the RBOCs and independent telephone companies in the United States.<ref>{{Cite web |title=About Adtran |url=https://www.adtran.com/about |access-date=October 21, 2022 |website=www.adtran.com}}</ref>
In 2006, Adtran acquired Luminous Networks, a manufacturer of access network equipment. In 2011, it acquired Bluesocket, a maker of enterprise Wi-Fi equipment based in Burlington, Massachusetts. In 2012, it acquired [[Nokia]] Siemens Networks' broadband access business based in Germany. In 2016, it acquired [[CommScope|CommScope's]] active fiber business.<ref>{{cite web |title=ADTRAN Acquires Bluesocket – Leading Innovator in Virtual Wireless LAN Solutions |url=https://www.businesswire.com/news/home/20110809005493/en/ADTRAN-Acquires-Bluesocket-%E2%80%93-Leading-Innovator-Virtual |website=www.businesswire.com |language=en |date=August 9, 2011}}</ref><ref>{{cite web |title=ADTRAN to acquire Nokia Siemens Networks fixed line Broadband Access business |url=https://connect-world.com/adtran-to-acquire-nokia-siemens-networks-fixed-line-broadband-access-business/#:~:text=ADTRAN%C2%AE%2C%20Inc.%2C%20%28NASDAQ%3AADTN%29%2C%20a%20leading%20provider%20of%20next-generation,and%20associated%20professional%20services%20and%20network%20management%20solutions. |website=Connect-World |date=December 12, 2011}}</ref> In 2018, Adtran acquired connected home software provider SmartRG, a Vancouver, WA, based company that develops and provides carrier-oriented, open-source connected home platforms and cloud services for broadband service providers.<ref>{{cite web |title=StackPath |url=https://www.lightwaveonline.com/business/mergers-acquisitions/article/16675940/adtran-acquires-connected-home-software-provider-smartrg |website=www.lightwaveonline.com}}</ref>
In 2021, Adtran entered into a business combination with [[ADVA Optical Networking|ADVA Optical Networking SE]], a cloud and mobile services networking company based in Munich and Meiningen in Germany.<ref>{{cite web |title=ADTRAN Holdings Announces Closing of Business Combination with ADVA |url=https://www.sec.gov/Archives/edgar/data/926282/000119312521260059/d210774dex21.htm|website=www.sec.gov}}</ref> In 2022, Adtran acquired the remaining shares of Cambridge Communication Systems (CCS) Limited, a developer of wireless backhaul and transport systems for small cells. It offers an [[mmWave]] Gigabit fiber extension system along with web-based management software for planning, configuring and monitoring networks. In 2024, Adtran self-certified as "Buy America-compliant" with the U.S. Department of Commerce. This list acts as a reference for communications service providers applying for Broadband Equity Access and Deployment (BEAD) funding.<ref>{{cite web |title=Adtran added to U.S. Department of Commerce self-certification list of BABA-compliant vendors |url=https://www.commerce.gov/sites/default/files/2024-07/BABA_Self_Certification_List.PDF |website=www.commerce.gov}}</ref>
== Notable products ==
'''50G PON''' Adtran's implementation of 50Gbit/s [[passive optical network]] (PON) technology includes its SDX 6400 Series of optical line terminals.
'''Quantum key distribution (QKD)''' In collaboration with Orange, Adtran demonstrated a 400Gbit/s data transmission system using QKD. The hybrid approach integrated quantum-safe encryption with classical cryptographic methods to secure data across a 184&nbsp;km system.
'''Optical cesium atomic clocks''' Adtran's Oscilloquartz division has introduced atomic clocks that leverage optical pumping technology. The improved accuracy and stability of these devices exceed the current ITU-T G.811.1 Enhanced Primary Reference Clock (ePRC) specification. The current highest-end clocks in this range can combine with core grandmaster devices to maintain 100 nanosecond precision for up to 100 days.
'''Mosaic One''' Mosaic One is a cloud-based software-as-a-service platform that aggregates data from management systems, broadband access and in-home devices to support network operations and customer care.
== Locations ==
Adtran's corporate headquarters is located in Huntsville, Alabama, in [[Cummings Research Park]].<ref name="BWHG100">{{cite news |date=2021 |title=2021 Adtran 10-K |work=10-K |url=https://d18rn0p25nwr6d.cloudfront.net/CIK-0000926282/a68469be-e2eb-46c2-87a9-1e80a1b8ae37.pdf |access-date=October 21, 2022}}</ref> It has international offices located in:<ref>{{Cite web |title=Adtran 2021 Annual Report |url=https://s22.q4cdn.com/718573125/files/doc_financials/annual_reports/2021/2021_Annual_Report_.pdf |access-date=October 21, 2022 |website=adtran.com/investor relations}}</ref>
* Melbourne, Australia
* Berlin and Greifswald, Germany
* Hyderabad, India
* Tel Aviv, Israel
* Milan, Italy
* Riyadh, Saudi Arabia
* Bratislava, Slovakia
* Tunis, Tunisia
* Basingstoke, Hampshire, United Kingdom
* Adastral Park, Ipswich, United Kingdom
* Warsaw, Poland
* Munich, Bavaria, Germany
* York, North Yorkshire, United Kingdom
== Merger with ADVA Optical Networking ==
Adtran's 2022 business combination with [[ADVA Optical Networking|ADVA]] expanded its portfolio to include end-to-end data transport products, complementing its existing focus on access networking equipment. The merger also gave Adtran ownership of ADVA's subsidiary, [[Oscilloquartz]], a manufacturer of timing and synchronization solutions based in Switzerland.
== Certifications ==
Adtran is certified for [[ISO 9001]], [[ISO 14001]], [[ISO 27001]] and [[TL 9000]].<ref name=":0">{{Cite web |date=October 21, 2022 |title=2021 10-K |url=https://d18rn0p25nwr6d.cloudfront.net/CIK-0000926282/a68469be-e2eb-46c2-87a9-1e80a1b8ae37.pdf |access-date=October 21, 2022 |website=Adtran.com Investor Relations}}</ref>
== References ==
{{Reflist}}
== External links ==
* {{Official website|http://www.adtran.com/}}
{{SDAX companies}}
{{Authority control}}
[[Category:Companies based in Huntsville, Alabama]]
[[Category:Telecommunications companies of the United States]]
[[Category:Companies established in 1986]]
[[Category:Networking companies of the United States]]
[[Category:Networking hardware companies]]
[[Category:Companies listed on the Frankfurt Stock Exchange]]
[[Category:Companies listed on the Nasdaq]]
[[Category:Companies formerly in the MDAX]]
[[Category:1986 establishments in the United States]]
[[Category:1986 establishments in Alabama]]
[[Category:Computer companies of the United States]]
[[Category:Computer hardware companies]]