diff --git a/pySim/ts_51_011.py b/pySim/ts_51_011.py
index 7e8e6271..4189e6eb 100644
--- a/pySim/ts_51_011.py
+++ b/pySim/ts_51_011.py
@@ -707,6 +707,8 @@ class EF_xPLMNwAcT(TransRecEF):
         if 'cdma2000 1xRTT' in in_list:
             u16 |= 0x0010
         # E-UTRAN
+        if 'E-UTRAN' in in_list:
+            u16 |= 0x4000
         if 'E-UTRAN WB-S1' in in_list:
             u16 |= 0x6000
         if 'E-UTRAN NB-S1' in in_list:
diff --git a/pySim/utils.py b/pySim/utils.py
index 22534822..e268e422 100644
--- a/pySim/utils.py
+++ b/pySim/utils.py
@@ -230,7 +230,20 @@ def dec_act(twohexbytes:Hexstr) -> List[str]:
 	sel = []
 	for a in act_list:
 		if u16t & (1 << a['bit']):
-			sel.append(a['name'])
+			if a['name'] == "E-UTRAN":
+				# The Access technology identifier of E-UTRAN
+				# allows a more detailed specification:
+				if u16t & (1 << 13) and u16t & (1 << 12):
+					sel.append("E-UTRAN WB-S1")
+					sel.append("E-UTRAN NB-S1")
+				elif u16t & (1 << 13):
+					sel.append("E-UTRAN WB-S1")
+				elif u16t & (1 << 12):
+					sel.append("E-UTRAN NB-S1")
+				else:
+					sel.append("E-UTRAN")
+			else:
+				sel.append(a['name'])
 	return sel
 
 def dec_xplmn_w_act(fivehexbytes:Hexstr) -> Dict[str,Any]:
diff --git a/pysim-testdata/Fairwaves-SIM.ok b/pysim-testdata/Fairwaves-SIM.ok
index c577aa9a..eebf9658 100644
--- a/pysim-testdata/Fairwaves-SIM.ok
+++ b/pysim-testdata/Fairwaves-SIM.ok
@@ -31,7 +31,7 @@ OPLMNwAcT:
 	ffffff0000 # unused
 
 HPLMNAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
diff --git a/pysim-testdata/Wavemobile-SIM.ok b/pysim-testdata/Wavemobile-SIM.ok
index c978891d..a6bdeaaf 100644
--- a/pysim-testdata/Wavemobile-SIM.ok
+++ b/pysim-testdata/Wavemobile-SIM.ok
@@ -11,7 +11,7 @@ Display HPLMN: False
 Display OPLMN: False
 PLMNsel: 00f110ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 PLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
@@ -29,7 +29,7 @@ PLMNwAcT:
 	ffffff0000 # unused
 
 OPLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
diff --git a/pysim-testdata/sysmoISIM-SJA2.ok b/pysim-testdata/sysmoISIM-SJA2.ok
index c463c3f0..8a5d30a3 100644
--- a/pysim-testdata/sysmoISIM-SJA2.ok
+++ b/pysim-testdata/sysmoISIM-SJA2.ok
@@ -11,7 +11,7 @@ Display HPLMN: True
 Display OPLMN: True
 PLMNsel: 00f110ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 PLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
@@ -25,7 +25,7 @@ PLMNwAcT:
 	ffffff0000 # unused
 
 OPLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
@@ -39,7 +39,7 @@ OPLMNwAcT:
 	ffffff0000 # unused
 
 HPLMNAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
diff --git a/pysim-testdata/sysmoUSIM-SJS1.ok b/pysim-testdata/sysmoUSIM-SJS1.ok
index cd141146..ab15f103 100644
--- a/pysim-testdata/sysmoUSIM-SJS1.ok
+++ b/pysim-testdata/sysmoUSIM-SJS1.ok
@@ -11,7 +11,7 @@ Display HPLMN: True
 Display OPLMN: True
 PLMNsel: 00f110ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 PLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
@@ -25,7 +25,7 @@ PLMNwAcT:
 	ffffff0000 # unused
 
 OPLMNwAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
@@ -39,7 +39,7 @@ OPLMNwAcT:
 	ffffff0000 # unused
 
 HPLMNAcT:
-	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
+	00f110ffff # MCC: 001 MNC: 01 AcT: UTRAN, E-UTRAN WB-S1, E-UTRAN NB-S1, GSM, GSM COMPACT, cdma2000 HRPD, cdma2000 1xRTT
 	ffffff0000 # unused
 	ffffff0000 # unused
 	ffffff0000 # unused
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 558b5e71..0fb502cc 100755
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -93,7 +93,7 @@ class DecTestCase(unittest.TestCase):
 		self.assertEqual(utils.dec_act("0010"), ["cdma2000 1xRTT"])
 
 	def testDecAct_allSet(self):
-		self.assertEqual(utils.dec_act("ffff"), ["UTRAN", "E-UTRAN", "GSM", "GSM COMPACT", "cdma2000 HRPD", "cdma2000 1xRTT"])
+		self.assertEqual(utils.dec_act("ffff"), ["UTRAN", "E-UTRAN WB-S1", "E-UTRAN NB-S1", "GSM", "GSM COMPACT", "cdma2000 HRPD", "cdma2000 1xRTT"])
 
 	def testDecxPlmn_w_act(self):
 		expected = {'mcc': '295', 'mnc': '10', 'act': ["UTRAN"]}