diff --git a/iso3166.go b/iso3166.go
index ce4590b..287594e 100644
--- a/iso3166.go
+++ b/iso3166.go
@@ -1620,6 +1620,14 @@ func populateISO3166() {
 	i.PhoneNumberLengths = []int{7}
 	iso3166Datas = append(iso3166Datas, i)
 
+	i.Alpha2 = "SZ"
+	i.Alpha3 = "SWZ"
+	i.CountryCode = "268"
+	i.CountryName = "Swaziland"
+	i.MobileBeginWith = []string{"7"}
+	i.PhoneNumberLengths = []int{8}
+	iso3166Datas = append(iso3166Datas, i)
+
 	i.Alpha2 = "SY"
 	i.Alpha3 = "SYR"
 	i.CountryCode = "963"
diff --git a/phonenumber_test.go b/phonenumber_test.go
index 32ef878..2613cb5 100644
--- a/phonenumber_test.go
+++ b/phonenumber_test.go
@@ -20,6 +20,7 @@ var mobWithLLCountryTests = []struct {
 	{"5117061970", "PE"},
 	{"862185551232", "CN"},
 	{"38391234999", "XK"},
+	{"26822123456", "SZ"},
 
 	// Mobile numbers
 	{"39339638066", "IT"},
@@ -30,6 +31,7 @@ var mobWithLLCountryTests = []struct {
 	{"51999400500", "PE"},
 	{"8614855512329", "CN"},
 	{"38342224999", "XK"},
+	{"26876123456", "SZ"},
 }
 
 func TestGetCountryForMobileNumberWithLandLine(t *testing.T) {