1 Microsoft Way, Redmond

1. A corporate address that represents a vast campus, not a single office

The name “One Microsoft Way” is best understood as an anchor for an entire corporate campus rather than a solitary headquarters tower: Microsoft itself describes its global headquarters as occupying 500 acres with public spaces and more than 125 buildings, language that frames the address as the gateway to a sprawling site ^[1]. Independent directories and mapping services likewise treat the location as the central Redmond campus — listing 1 Microsoft Way or One Microsoft Way as the company’s main office and mapping hub for multiple buildings across the property ^{[3] [5]}.

2. Multiple official variants and delivery details in public records

Public-facing Microsoft pages and filings use the One Microsoft Way address with different delivery codes and ZIP+4 endings depending on context: investor relations lists One Microsoft Way, Redmond, Washington 98052-6399 ^[4], a community Q&A and support pages show One Microsoft Way, Redmond, WA 98052 as contact information with phone numbers ^[2], and business directories give a ZIP+4 that ends in 8300 ^[3]. These discrepancies reflect standard corporate practice of assigning different mail routing codes, building identifiers or department-specific ZIPs on a large campus rather than indicating conflicting facts about location.

3. Contact points and official phone numbers tied to the address

Corporate contact data tied to One Microsoft Way appears in official filings and support pages: Microsoft’s SEC filing and Microsoft Support references list a Redmond phone number, 882-8080, alongside the corporate address ^{[6] [2]}. This consistency in telephone contact supports the use of One Microsoft Way as a consolidated corporate contact hub even as mail or internal building addresses vary across documents.

4. Historical and contextual markers for the Redmond headquarters

Multiple sources note the long-standing role of the Redmond campus as Microsoft’s headquarters and global hub, including histories documenting the company’s move to the site in the 1980s and descriptions of the campus footprint and facilities ^{[7] [5]}. Company-owned pages and independent dossiers reiterate the campus’s role as the central location for Microsoft’s strategic management and many operational functions ^{[8] [9]}. Those accounts underline that “1 Microsoft Way” functions as both a brandable corporate address and an operational locus for tens of thousands of employees.

5. What reporting does not resolve and where caution is warranted

Available sources do not provide a single, canonical postal suffix or a definitive map tying every building number on the campus to “1 Microsoft Way,” nor do they resolve which exact building should be visited for a particular department; instead, different departments and documents use different ZIP+4 endings or building identifiers ^{[10] [4] [3]}. Reporting cannot confirm on its own whether a specific visitor center, office suite or public entrance corresponds to a particular ZIP+4 without direct, department-level guidance from Microsoft; therefore, for deliveries or visits the company’s official channels should be consulted ^{[2] [4]}.

6. Interpretation: address as a legal, logistical and symbolic center

Taken together, the sources present One Microsoft Way as a legal headquarters address used in filings and investor relations, a logistical hub for phones and mail routed across a large campus, and a symbolic brand identifier for Microsoft’s Redmond presence ^{[6] [4] [1]}. Alternative readings focus on the practical reality that large corporations commonly distribute operations and mailing codes across many buildings, which explains the multiple address variants found in support pages, directories and filings ^{[3] [10]}.