I am band locking to band 66 but that doesn’t stop any other bands from aggregating with themselves at least. I also found this guide and tried to use it to aggregate with 66 + other bands and it says “OK” after the AT command but never actually aggregates-LINK. The speeds right now at 11:30pm are 73 down and 20 up.
[
{
“type”: “servingcell”,
“state”: “NOCONN”,
“mode”: “FDD”,
“mcc”: “310”,
“mnc”: “260”,
“cellid”: “1C3D302”,
“pcid”: “376”,
“earfcn”: “66811”,
“band”: “66”,
“ul_bandwidth”: “15M”,
“dl_bandwidth”: “15M”,
“tac”: “A2E5”,
“rsrp”: “-92”,
“rsrq”: “-8”,
“rssi”: “-64”,
“sinr”: “23”,
“srxlev”: “-”,
“rat”: “LTE”
},
{
“type”: “neighbourcell”,
“earfcn”: “66811”,
“cellid|pcid”: “376”,
“rat”: “LTE”
}
]