This section provides information on past frequency procedures in the 2100 MHz band:
- November 2, 2000: Original allocation of frequencies designated for UMTS to 6 bidders (K15/00)
- February 28, 2002: TKK Position Paper on Infrastructure Sharing
- March 1, 2003: The TKK defined general conditions for reviewing coverage levels
- December 15, 2003: Approval of Mobilkom's takeover of 3G Mobile Telecommunications GmbH (K15g/00)
- March 15, 2004: Approval of the exchange of frequency packages between Mobilkom and 3G Mobile (K15g/00-144)
- April 26, 2004: Approval of T-Mobile Austria's takeover of tele.ring (F2/05).
- June 7, 2004: Approval of Mobilkom's sale of the 1964.7-1969.7 / 2154.7-2159.7 MHz frequency range to T-Mobile Austria (K15b/00-63, K 15f/00-74, K 15g/00-157, application).
- September 20, 2004: Approval of transfer of usage rights in the frequency range 1959.7-1964.7/2149.7-2154.7 MHz from 3G Mobile Telecommunications GmbH to Mobilkom Austria AG & Co KG. (K15g/00-169, application)
- September 4, 2006: Rejection of application for transfer of frequency packages previously held by tele.ring (originally Mannesmann Mobilfunk GmbH) from T-Mobile to Orange (F5/06-21, application) bzw. H3G (F4/06-27, application).
- January 22, 2007: Approval of application for transfer of frequency packages previously held by tele.ring (originally Mannesmann Mobilfunk GmbH) from T-Mobile to Orange (F7/06, application) and H3G (F8/06, application).
- Dec 13, 2012: With decision F6/12 of the TKK the transfer of rights of use for the channels 975-990 towards A1 Telekom Austria AG has been approved.
- Dec 13, 2012: With decision F1/12 the change of ownership on Orange Austria Telecommunications GmbH, which is the outcome of the transfer of 100% of Orange Austria towards Hutchision 3G Austria Holdings GmH, has been approved.
- July 2nd, 2013: Orange Austria Telecommunications GmbH was renamed to Hutchison Drei Austria GmbH, the previous Hutchison 3G Austria GmbH was merged into Hutchison Drei Austria GmbH.
- August, 10th, 2015: Decision in the refarming procedure for the 2.1 GHz frequency band (F8/14-47)
- September 11, 2020: Allocation procedure for 700, 1500 and 2100 MHz (F1/16)
- September 7, 2021: Modification of technical conditions (F1/21)
As of March 16, 2022