ADTRAN HOLDINGS IN revenue for the last year amounted to 967.47 M CHF, the most of which — 820.37 M CHF — came from its highest performing source at the moment, Network Solutions, the year earlier bringing 847.78 M CHF. The greatest contribution to the revenue figure was made by United States — last year it brought ADTRAN HOLDINGS IN 388.12 M CHF, and the year before that — 478.48 M CHF.