From the chart you posted, TeliaSonera/Telia, which Halebop is a subsidiary of, uses 1800 MHz band for 3G and 850, 2600 Mhz band for 4G (LTE). The T-Mobile/Dev version of the Moto X has the following band support:
GSM/EDGE: 850, 900, 1800, 1900 MHz (for phone calls and 2G (EDGE) data)
3G: 850...