diff --git a/iso3166.go b/iso3166.go
index a83d791..2ddb4ea 100644
--- a/iso3166.go
+++ b/iso3166.go
@@ -357,7 +357,7 @@ func GetISO3166() []ISO3166 {
 	i.CountryCode = "86"
 	i.CountryName = "China"
 	i.MobileBeginWith = []string{"13", "14", "15", "16", "17", "18"}
-	i.PhoneNumberLengths = []int{11}
+	i.PhoneNumberLengths = []int{10, 11}
 	iso3166Datas = append(iso3166Datas, i)
 
 	i.Alpha2 = "CI"
@@ -1333,7 +1333,7 @@ func GetISO3166() []ISO3166 {
 	i.CountryCode = "51"
 	i.CountryName = "Peru"
 	i.MobileBeginWith = []string{"9"}
-	i.PhoneNumberLengths = []int{9}
+	i.PhoneNumberLengths = []int{8, 9}
 	iso3166Datas = append(iso3166Datas, i)
 
 	i.Alpha2 = "PH"
@@ -1832,6 +1832,14 @@ func GetISO3166() []ISO3166 {
 	i.PhoneNumberLengths = []int{7}
 	iso3166Datas = append(iso3166Datas, i)
 
+	i.Alpha2 = "XK"
+	i.Alpha3 = "XKX"
+	i.CountryCode = "383"
+	i.CountryName = "Kosovo"
+	i.MobileBeginWith = []string{"3", "4", "6"}
+	i.PhoneNumberLengths = []int{8}
+	iso3166Datas = append(iso3166Datas, i)
+
 	i.Alpha2 = "YE"
 	i.Alpha3 = "YEM"
 	i.CountryCode = "967"
diff --git a/phonenumber_test.go b/phonenumber_test.go
index 3a3b8d3..aaa5603 100644
--- a/phonenumber_test.go
+++ b/phonenumber_test.go
@@ -19,6 +19,9 @@ var mobFormatTests = []struct {
 	{"(817) 569-8900", "USA", "18175698900"},
 	{"+371 25 641 580", "LV", "37125641580"},
 	{"+62 895349866066", "ID", "62895349866066"},
+	{"+51 912 640 074", "PE", "51912640074"},
+	{"+86 18 855 512 329", "CN", "8618855512329"},
+	{"+383 4 555 4999", "XK", "38345554999"},
 }
 
 func TestFormatMobile(t *testing.T) {
@@ -41,6 +44,10 @@ var mobFormatTestsNegative = []struct {
 	{"7499 709 88 33", "RU"},
 	{"+48 22 (483) 53-34", "PL"},
 	{"4970523743", "DE"},
+	{"51926474", "PE"},
+	{"519264112", "PE"},
+	{"86178555123", "CN"},
+	{"383 9 3334999", "XK"},
 }
 
 func TestFormatForLandLineIsEmpty(t *testing.T) {
@@ -67,6 +74,10 @@ var mobWithLLFormatTests = []struct {
 	{"7499 709 88 33", "RU", "74997098833"},
 	{"22 (483) 53-34", "PL", "48224835334"},
 	{"48224835334", "PL", "48224835334"},
+	{"+51 (1) 706-19-70", "PE", "5117061970"},
+	{"+86 21 85-512-329", "CN", "862185512329"},
+	{"+383 9 1234999", "XK", "38391234999"},
+
 	// Mobile numbers
 	{"090 6135 3368", "JP", "819061353368"},
 	{"+8615948692360", "CN", "8615948692360"},
@@ -74,6 +85,9 @@ var mobWithLLFormatTests = []struct {
 	{"(817) 569-8900", "USA", "18175698900"},
 	{"+371 25 641 580", "LV", "37125641580"},
 	{"00371 25 641 580", "LV", "37125641580"},
+	{"+51 999 400 500", "PE", "51999400500"},
+	{"+86 (16) 855-512-329", "CN", "8616855512329"},
+	{"+383 4 1234999", "XK", "38341234999"},
 }
 
 func TestFormatWithLandLine(t *testing.T) {
@@ -98,12 +112,19 @@ var mobWithLLCountryTests = []struct {
 	{"14378869667", "CA"},
 	{"12836907618", "US"},
 	{"13406407159", "VI"},
+	{"5117061970", "PE"},
+	{"862185551232", "CN"},
+	{"38391234999", "XK"},
+
 	// Mobile numbers
 	{"39339638066", "IT"},
 	{"37125641580", "LV"},
 	{"43663242739", "AT"},
 	{"21655886170", "TN"},
 	{"3197010280754", "NL"},
+	{"51999400500", "PE"},
+	{"8614855512329", "CN"},
+	{"38342224999", "XK"},
 }
 
 func TestGetCountryForMobileNumberWithLandLine(t *testing.T) {
@@ -265,6 +286,9 @@ var mobCountryTests = []struct {
 	{"97366622125", "BH", true},
 	{"59160136560", "BO", true},
 	{"59168295570", "BO", true},
+	{"51907061970", "PE", true},
+	{"8613855512329", "CN", true},
+	{"38361234999", "XK", true},
 }
 
 func TestGetCountryForMobileNumber(t *testing.T) {