| Certification Status | Certified |
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| ID | TL 1022 |
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| Registration Name | Adtran, Inc. |
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| Company Name | ADTRAN, Inc. |
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| Certificate Number/Label | TL19.1270 |
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| Requirements Handbook Release | 6.3 |
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| Measurements Handbook Release | R5.7 |
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| Category Table Release | R5.9 |
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| Date First Certified | 2000-01-25 |
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| Current Certification Date | 2026-04-29 |
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| Certification valid until | 2026-11-20 |
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| Certification Body/Registrar | National Standards Authority of Ireland |
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| Accreditation Body | ANSI National Accreditation Board (ANAB) |
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| Specialty Option | HS |
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| Nace Code - Hardware | DL 32.2 |
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| Nace Code - Software | DL 32.2 |
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| Nace Code - Services | |
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| ISO Scope | Marketing, sales/services, design, testing, production, delivery, installation for optical network equipment and software, carrier ethernet and network virtualization (NFV) as well as synchronization solutions for the telecommunication industry and time & frequency market. |
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| TL 9000 Scope | Marketing, sales/services, design, testing, production, delivery, installation for optical network equipment and software, carrier ethernet and network virtualization (NFV) as well as synchronization solutions for the telecommunication industry and time & frequency market. |
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