TITLE: GCN CIRCULAR NUMBER: 31385 SUBJECT: GRB 220101A: VLA detection DATE: 22/01/04 13:43:49 GMT FROM: Tanmoy Laskar at U of Bath T. Laskar (Radboud U.) reports on behalf of a larger collaboration: "We observed GRB 220101A (Tohuvavohu et al., GCN 31347) with the Karl G. Jansky Very Large Array (VLA) beginning on 2022 January 04 04:00 UT (2.96 d after the burst). At a mean frequency of 6.0 GHz, we detect a radio source with a preliminary flux density of ~ 0.2 mJy at the position: RA (J2000) = 00:05:24.816 +/- 0.005 Dec (J2000) = 31:46:08.37 +/- 0.02 consistent with the X-ray position (Osborne et al., GCN 31349), optical position (Tohuvavohu et al., GCN 31347; Hentunen et al., GCN 31356), and mm-band position (Laskar, GCN 31372). Further observations are planned. We thank the VLA staff for rapidly executing these observations."