Automatic detection of the APN for a particular carrier

Response from AT!LTEINFO? and AT!NVPLMN?

AT!LTEINFO?
!LTEINFO:
Serving: EARFCN MCC MNC TAC CID Bd D U SNR PCI RSRQ RSRP RSSI RXLV
2100 311 480 12034 054C8E20 4 5 5 6 77 -9.4 -101.8 -72.4 20

IntraFreq: PCI RSRQ RSRP RSSI RXLV
77 -9.4 -101.8 -72.4 20
160 -17.0 -113.0 -86.2 20
100 -19.1 -113.2 -86.3 20

InterFreq: EARFCN ThresholdLow ThresholdHi Priority PCI RSRQ RSRP RSSI RXLV
5230 0 6 3 77 -10.9 -86.4 -67.8 0
5230 0 6 3 71 -20.0 -97.5 -67.7 0

GSM: ThreshL ThreshH Prio NCC ARFCN 1900 valid BSIC RSSI RXLV

WCDMA: UARFCN ThreshL ThreshH Prio PSC RSCP ECN0 RXLV

CDMA 1x: Chan BC Offset Phase Str

CDMA HRPD: Chan BC Offset Phase Str

AT!NVPLMN?
MCC MNC
??? ???