Quectel EC25 Command Manual page 78

Reference
3GPP TS 27.007
Parameter
<n> 0
1
2
<stat> 0
1
2
3
4
5
<lac> String type. Two bytes location area code in hexadecimal format
<ci> String type. 16-bit (GSM) or 28-bit (UMTS/LTE) cell ID in hexadecimal format
<Act> Access technology selected
0
2
3
4
5
6
7
Example
AT+CREG=1
OK
+CREG: 1
AT+CREG=2
OK
+CREG: 1,"D509","80D413D",7
EC25&EC21_AT_Commands_Manual
Disable network registration unsolicited result code
Enable network registration unsolicited result code: +CREG: <stat>
Enable network registration unsolicited result code with location information:
+CREG: <stat>[,<lac>,<ci>[,<Act>]]
Not registered. ME is not currently searching a new operator to register to
Registered, home network
Not registered, but ME is currently searching a new operator to register to
Registration denied
Unknown
Registered, roaming
GSM
UTRAN
GSM W/EGPRS
UTRAN W/HSDPA
UTRAN W/HSUPA
UTRAN W/HSDPA and HSUPA
E-UTRAN
//URC reports that ME has registered on network
//Activate extended URC mode
//URC reports that operator has found location area code
and cell ID
LTE Module Series
EC25&EC21 AT Commands Manual
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