Maybe???

Things that could be relevant:

https://arstechnica.com/information-technology/2015/10/low-cost-imsi-catcher-for-4glte-networks-track-phones-precise-locations/
https://privacyinternational.org/explainer/2222/imsi-catchers
https://www.theverge.com/2017/7/30/16058174/diy-cellphone-sniffer-gsm-imsi-catcher
https://www.eff.org/pages/cell-site-simulatorsimsi-catchers
https://hackaday.com/2016/04/08/build-your-own-gsm-base-station-for-fun-and-profit/
https://www.evilsocket.net/2016/03/31/how-to-build-your-own-rogue-gsm-bts-for-fun-and-profit/
https://media.ccc.de/v/25c3-3007-en-running_your_own_gsm_network
https://media.ccc.de/v/34c3-8952-running_gsm_mobile_phone_on_sdr
https://github.com/CellularPrivacy/Android-IMSI-Catcher-Detector
https://arxiv.org/pdf/1510.07563.pdf
https://www.youtube.com/watch?v=UjwgNd_as30
https://www.youtube.com/watch?v=FqtJ-TvtLTQ