590th Anti-Aircraft Missile Regiment
Identity
Open sources tie military unit 31665 to the 590th anti-aircraft missile regiment in Novosibirsk. A 2024-2025 Russian Geographical Society listing places v/ch 31665 at ul. Borisa Bogatkova 194/10, and July 2021 reporting in Izvestia states the 590th regiment is located in Novosibirsk. ([dictant-special.rgo.ru](https://dictant-special.rgo.ru/dictant_place/60482?utm_source=openai))
Hierarchy
Public reporting in 2021-2022 places the regiment under the 41st Air Defense Division of the 14th Air and Air Defense Army, Central Military District. The same reporting assigns the division responsibility for Novosibirsk and Irkutsk oblasts, Krasnoyarsk Krai, and Khakassia; a March 15, 2022 Ukrainian GUR publication, which should be treated as an external intelligence claim rather than Russian official confirmation, lists the regiment with a command post, communications company, two SAM battalions, and support elements. ([iz.ru](https://iz.ru/1191673/roman-kretcul-anna-cherepanova/osnashchenie-sibiri-vostok-rossii-zashchitiat-ot-giperzvukovogo-oruzhiia?utm_source=openai))
Equipment
Unit 31665 was operating S-300-family equipment by 2001; Kommersant reported theft of components from an S-300 laboratory in v/ch 31665 in Novosibirsk. Re-equipment to S-400 was announced in October 2015, TASS reported the Novosibirsk air-defense regiment received S-400 in late 2015 and entered combat duty in March 2016, and RIA reported S-400 crews from the regiment were again on combat duty in Novosibirsk Oblast in April 2018 after live-fire training at Ashuluk. ([kommersant.ru](https://www.kommersant.ru/doc/168486?utm_source=openai))
Site network
The three supplied placemarks align more closely with historical Novosibirsk SAM firing sites than with a single confirmed HQ. Declassified CIA reporting identified a completed SA-2 site 4.1 nm northwest of Novosibirsk at 55-05-15N 82-51-20E, another east-northeast of the city at 55-04-20N 83-16-10E, and a 1982 SA-10 site at 54-51-38N 82-49-29E; those coordinates closely match placemarks 1, 3, and 2 respectively. The 1982 CIA report also stated that four SA-10 sites were deployed around Novosibirsk, so the best-supported interpretation is a dispersed air-defense site network rather than a single geolocated headquarters. ([cia.gov](https://www.cia.gov/readingroom/document/cia-rdp78b04558a000800100027-4?utm_source=openai))
Garrison footprint
Public records indicate both a current administrative address and a legacy former-garrison footprint in Novosibirsk. Current public listings place v/ch 31665 at Borisa Bogatkova 194/10, while Novosibirsk municipal property records in 2025 still reference infrastructure serving the "former v/ch 31665" at Military Town No. 95 on ul. Sechenova. ([dictant-special.rgo.ru](https://dictant-special.rgo.ru/dictant_place/60482?utm_source=openai))