diff --git a/NAMESPACE b/NAMESPACE
index 20419f7..e4680a0 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -5,3 +5,4 @@ export(whatismyip)
 export(hasIPformat)
 export(getIPaddress)
 export(freegeoip)
+export(isPublicIP)
diff --git a/R/net.tools.R b/R/net.tools.R
index bd4cfc2..3199b9f 100644
--- a/R/net.tools.R
+++ b/R/net.tools.R
@@ -127,4 +127,26 @@ freegeoip <- function(ip, format = ifelse(length(ip) == 1,'list','dataframe')) {
         }
         return(ret)
     }
-} 
+}
+
+#' isPublicIP
+#' Returns TRUE for Public IP and returns FALSE for Private IP
+#'
+#' @param ip 
+#'
+#' @return
+#' Boolean
+#' @export
+#'
+#' @examples
+#' ip <- "0.0.0.0" (Public IP) returns TRUE
+#' ip <- "10.0.0.0" (Private IP) returns FALSE
+isPublicIP <- function(ip) {
+  
+  longIP <- ip2long(ip)
+  return(ifelse(longIP < 167772160 || 
+          (longIP > 184549375 && longIP < 2851995648) || 
+          (longIP > 2852061183 && longIP < 2886729728) || 
+          (longIP > 2887778303 && longIP < 3232235520) || 
+          (longIP > 3232301055), "TRUE", "FALSE"))
+}
diff --git a/tests/testIsPublicIP.R b/tests/testIsPublicIP.R
new file mode 100644
index 0000000..a487578
--- /dev/null
+++ b/tests/testIsPublicIP.R
@@ -0,0 +1,36 @@
+#Testing isPublicIP
+
+#Primer rango de IPs publicas
+test1 <- "0.0.0.0"
+test2 <- "9.255.255.255"
+
+#Primer rango de IPs privadas
+test3 <- "10.0.0.0"
+test4 <- "10.255.255.255"
+
+#Segundo rango de IPs publicas
+test5 <- "11.0.0.0"
+test6 <- "169.253.255.255"
+
+#Segundo rango de IPs privadas
+test7 <- "169.254.0.0"
+test8 <- "169.254.255.255"
+
+#Tercer rango de IPs publicas
+test5 <- "169.255.0.0"
+test6 <- "172.15.255.255"
+
+#Tercer rango de IPs privadas
+test7 <- "172.16.0.0"
+test8 <- "172.31.255.255"
+
+#Cuarto rango de IPs publicas
+test9 <- "172.32.0.0"
+test10 <- "192.167.255.255"
+  
+#Cuarto rango de IPs privadas
+test11 <- "192.168.0.0"
+test12 <- "192.168.255.255"
+
+#Quinto rango de IPs publicas
+test13 <- "192.169.0.0" #En adelante