Welcome to our dedicated page for Adtran news (Ticker: ADTN), a resource for investors and traders seeking the latest updates and insights on Adtran stock.
ADTRAN Holdings, Inc. (NASDAQ: ADTN, FSE: QH9) is the parent company of Adtran, Inc., which provides open, disaggregated networking and communications solutions used by communications service providers, private enterprises, government organizations and individual users worldwide. The ADTN news stream highlights how the company’s broadband access, optical networking, synchronization and AI-based software platforms are applied in real deployments and financial decisions.
Recent company news features deployments of Adtran’s open, intelligent fiber access platforms to support multigigabit fiber-to-the-home services for residents and businesses. Examples include utilities and regional broadband providers expanding city-wide broadband using Adtran’s fiber access technology integrated with Mosaic One and third-party platforms to simplify network management and enhance subscriber experience.
News coverage also focuses on Adtran’s Mosaic One Clarity solution, built on its REAL AI platform. Articles describe how service providers use Mosaic One Clarity to consolidate network and in-home data, identify likely root causes of issues and enable proactive assurance, with early results showing reductions in trouble tickets and fewer site visits.
In optical networking, ADTRAN news includes participation in industry interoperability demonstrations with its FSP 3000 open line system and coherent pluggable optics, such as 100ZR+ and 400ZRE modules. Additional stories highlight Oscilloquartz synchronization platforms, including support for Galileo’s OSNMA authentication service and integrations that combine GNSS and 5G-based terrestrial timing for resilient synchronization.
Investors can also find announcements of quarterly financial results, earnings calls, convertible senior notes offerings and related credit agreement amendments. Together, these items provide a view into ADTRAN Holdings, Inc.’s product developments, customer deployments, capital structure and ongoing role in broadband access, optical transport and timing markets.
ADTRAN Holdings (NASDAQ: ADTN) provided preliminary unaudited results for Q4 and full-year 2025. Q4 revenue is expected $290.0M–$293.0M, above prior guidance of $275.0M–$285.0M. Full-year U.S. GAAP revenue is expected to be $1,082.2M–$1,085.2M. Preliminary Q4 GAAP operating margin is 1.4%–1.7% and Q4 non-GAAP operating margin is 6.0%–6.9% (within prior guidance). Full-year GAAP operating margin is expected at (1.5%)–(1.4%); full-year non-GAAP operating margin 4.6%–4.9%. The company expects Q4 non-GAAP EPS to exceed current analyst consensus. Final audited results will be released February 25, 2026.
Adtran (NASDAQ:ADTN) was selected by FiberCop to supply optical transport for a nationwide metro rollout in Italy to support the operator's open-access strategy. The deployment uses Adtran's FSP 3000 platform (AccessFlex, M-Flex800), Coherent 100ZR pluggables for compact 100G metro links, and the Mosaic Network Controller for centralized management and automation. The solution supports 100G and 400G DWDM and emphasizes space-, cost- and power-efficiency across major Italian cities.
Adtran (NASDAQ:ADTN) said Henderson Municipal Power & Light is expanding citywide broadband in Henderson, Kentucky using Adtran’s open intelligent fiber access platform to deliver multigigabit FTTH. The deployment uses XGS-PON access with SDX 6330 and SDX 8305 OLTs, 630 Series ONTs and 8600/8700 mesh Wi‑Fi gateways, integrated with Mosaic One and GLDS BroadHub® for simplified operations, faster provisioning and flexible billing.
Adtran also highlighted AI-driven insights and Intellifi connected‑home features to improve reliability, reduce support costs and drive subscriber engagement and ARPU.
Adtran (NASDAQ:ADTN) announced on November 18, 2025 that ACE Fiber, the broadband unit of ACE Power in Mississippi, deployed Adtran’s Mosaic One Clarity powered by the REAL AI platform to move from reactive troubleshooting to proactive assurance.
The solution consolidates access and in-home metrics, identifies likely root causes, prioritizes guided actions, and aims to reduce truck rolls. Early results show up to 75% fewer trouble tickets in the first month, faster fault resolution and improved customer experience. The deployment is designed to scale as ACE Fiber adds data sources and policies, supporting phased AI adoption without retooling.
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NextNav (Nasdaq: NN) and Oscilloquartz announced successful integration of NextNav 5G-based PNT (Positioning, Navigation, and Timing) technology with an Oscilloquartz GNSS-enabled grandmaster clock on October 24, 2025.
The combined system produced GPS-quality timing outputs (PPS and time-of-day) in both outdoor and indoor environments when GPS was absent or degraded by fusing 5G PRS, GPS, and the grandmaster clock. Oscilloquartz’s grandmaster uses a Zero Trust Architecture and accepts multiple timing sources to provide redundancy and resilient synchronization for national security, public safety, telecom, financial services, and other mission-critical infrastructure.
Adtran (NASDAQ:ADTN) announced that its Oscilloquartz platforms now support Galileo OSNMA, the first civilian GNSS authentication service, via firmware update for supported multi-band GNSS receivers. The upgrade verifies navigation messages using digital signatures and TESLA chain keys to ensure timing authenticity and protect against spoofing and manipulation. Available for OSA 5412, OSA 5422, OSA 5430 and OSA 5440, the feature pairs OSNMA with Oscilloquartz Syncjack™ probing to detect record-and-replay (meaconing) attacks by cross-checking GNSS against trusted PTP sources. The update requires no hardware replacement and aims to boost timing resilience for 5G, finance, data centers, energy and other critical infrastructure.
ADTRAN Holdings (NASDAQ: ADTN) will release its third quarter 2025 financial results after market close on Monday, November 3, 2025.
The company will host an earnings conference call on Tuesday, November 4, 2025 at 9:30 a.m. Central Time (4:30 p.m. Central European Time). The call will be webcast and available via the company's Investor Relations site, with dial-in access using Conference ID 8936454. An online replay and transcript will be posted and remain available for at least 12 months.
Adtran (NASDAQ:ADTN) on October 14, 2025 launched Mosaic One Clarity, an AI-driven network operations module built on its REAL AI platform to provide predictive maintenance, explainable insights, guided remediation and continuous learning across multi-vendor access and in-home networks.
The solution is already in several customer trials and aims to reduce site visits, shorten repair times and improve service quality without major infrastructure changes. A trial customer projects up to 75% fewer trouble tickets per month based on early results.
Adtran (NASDAQ:ADTN) showcased its open networking capabilities at the OIF's ECOC 2025 demonstration, featuring its FSP 3000 open line system (OLS) and coherent pluggable transceivers. The company demonstrated a 300km multi-span link supporting speeds from 100Gbit/s to 800Gbit/s in a multi-vendor environment.
The showcase included Adtran's 100ZR+ and 400ZRE coherent pluggables, which were validated across multiple hosts and platforms during the OIF Plugfest. The FSP 3000 OLS supports data rates up to 1.6Tbit/s and features high-resolution flexgrid, colorless ROADMs, and automated monitoring capabilities.
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