# Texas Cryptologic Center ## Definition NSA campus at San Antonio's Medina Annex supplies a regional signals-intelligence and cyber presence. The article identifies reuse of a former Sony semiconductor plant as part of its physical history. ## Regional role Austin and San Antonio contribute complementary functions to the regional system. San Antonio hosts named federal signals, military information-warfare, and state cyber institutions; Austin supplies research, computation, microelectronics, doctrine, and commercial builders. The corridor is an architectural and geographic interpretation. Each organization keeps its own mission, authority, and professional participation requirements. ## Relationships - **agency:** [[wiki/National Security Agency|National Security Agency]]. - **site:** [[wiki/Medina Annex|Medina Annex]]. - **regional master router:** [[wiki/Austin Defense Technology|Austin Defense Technology]]. - **source article:** [[articles/How Austin Became a Different Kind of Defense Tech Epicenter|How Austin Became a Different Kind of Defense Tech Epicenter]]. - **civilian supplier and participation economy:** [[collections/The Civilian Intelligence Marketplace|The Civilian Intelligence Marketplace]]. - **intelligence architecture:** [[collections/Terrorism, Counterterrorism, and the Intelligence Environment|Terrorism, Counterterrorism, and the Intelligence Environment]]. ## Sources / Provenance - [[articles/How Austin Became a Different Kind of Defense Tech Epicenter#The I-35 Signals Corridor|Austin defense-tech article — The I-35 Signals Corridor]] — October 2026 revision; source for this entry’s regional role. - [Wikipedia, Texas Cryptologic Center](https://en.wikipedia.org/wiki/Texas_Cryptologic_Center) ## Connected Austin capabilities [[wiki/I-35 Signals Corridor|I-35 Signals Corridor]], [[wiki/Medina Annex|Medina Annex]], [[wiki/Chip Factory to SIGINT Center|Chip Factory to SIGINT Center]], [[wiki/Cryptologic Operations|Cryptologic Operations]], [[wiki/Second Fort Meade Ecosystem|Second Fort Meade Ecosystem]]. These entries identify associated implementations, people, methods, and institutional contexts in [[articles/How Austin Became a Different Kind of Defense Tech Epicenter|How Austin Became a Different Kind of Defense Tech Epicenter]]. [[wiki/Austin Defense Technology|Austin Defense Technology]] supplies their regional arrangement; [[collections/The Civilian Intelligence Marketplace|The Civilian Intelligence Marketplace]] supplies the wider supplier and participation economy.