diff --git a/README.md b/README.md
index 91119e8..efc0858 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,7 @@ Golang QQWry，高性能纯真IP查询库。
 # 使用须知
 
 1. 仅支持ipv4查询。
-2. city可能是城市，也可能是国家。
-3. area可能是区域，也可能是运营商。
+2. city可能是国家。
 
 # 使用说明
 
@@ -24,8 +23,8 @@ func main() {
 		panic(err)
 	}
 	// 从内存或缓存查询IP
-	city, area, err := qqwry.QueryIP("1.1.1.1")
-	log.Printf("城市：%s，区域：%s，错误：%v", city, area, err)
+	city, isp, err := qqwry.QueryIP("1.1.1.1")
+	log.Printf("城市：%s，运营商：%s，错误：%v", city, isp, err)
 }
 ```
 
diff --git a/client/client.go b/client/client.go
index 19edfdc..f3194bf 100644
--- a/client/client.go
+++ b/client/client.go
@@ -16,10 +16,10 @@ func main() {
 		return
 	}
 	queryIp := os.Args[1]
-	city, area, err := qqwry.QueryIP(queryIp)
+	city, isp, err := qqwry.QueryIP(queryIp)
 	if err != nil {
 		fmt.Printf("错误：%v\n", err)
 		return
 	}
-	fmt.Printf("城市：%s，区域：%s\n", city, area)
+	fmt.Printf("城市：%s，运营商：%s\n", city, isp)
 }
diff --git a/qqwry.go b/qqwry.go
index 2e29791..567cddd 100644
--- a/qqwry.go
+++ b/qqwry.go
@@ -26,7 +26,7 @@ const (
 
 type cache struct {
 	City string
-	Area string
+	Isp  string
 }
 
 func byte3ToUInt32(data []byte) uint32 {
@@ -44,10 +44,10 @@ func gb18030Decode(src []byte) string {
 }
 
 // QueryIP 从内存或缓存查询IP
-func QueryIP(queryIp string) (city string, area string, err error) {
+func QueryIP(queryIp string) (city string, isp string, err error) {
 	if v, ok := ipCache.Load(queryIp); ok {
 		city = v.(cache).City
-		area = v.(cache).Area
+		isp = v.(cache).Isp
 		return
 	}
 	ip := net.ParseIP(queryIp).To4()
@@ -88,7 +88,7 @@ func QueryIP(queryIp string) (city string, area string, err error) {
 	}
 	posM := offset + 4
 	mode := data[posM]
-	var areaPos uint32
+	var ispPos uint32
 	switch mode {
 	case redirectMode1:
 		posC := byte3ToUInt32(data[posM+1 : posM+4])
@@ -107,7 +107,7 @@ func QueryIP(queryIp string) (city string, area string, err error) {
 		if mode != redirectMode2 {
 			posC += uint32(len(city) + 1)
 		}
-		areaPos = posC
+		ispPos = posC
 	case redirectMode2:
 		posCA := byte3ToUInt32(data[posM+1 : posM+4])
 		for i := posCA; i < dataLen; i++ {
@@ -116,7 +116,7 @@ func QueryIP(queryIp string) (city string, area string, err error) {
 				break
 			}
 		}
-		areaPos = offset + 8
+		ispPos = offset + 8
 	default:
 		posCA := offset + 4
 		for i := posCA; i < dataLen; i++ {
@@ -125,31 +125,31 @@ func QueryIP(queryIp string) (city string, area string, err error) {
 				break
 			}
 		}
-		areaPos = offset + uint32(5+len(city))
-	}
-	areaMode := data[areaPos]
-	if areaMode == redirectMode1 || areaMode == redirectMode2 {
-		areaPos = byte3ToUInt32(data[areaPos+1 : areaPos+4])
-	}
-	if areaPos > 0 {
-		for i := areaPos; i < dataLen; i++ {
-			if data[i] == 0 {
-				area = string(data[areaPos:i])
-				break
-			}
-		}
+		ispPos = offset + uint32(5+len(city))
 	}
 	if city != "" {
 		city = strings.TrimSpace(gb18030Decode([]byte(city)))
 	}
-	if area != "" {
-		if strings.Contains(area, "CZ88.NET") {
-			area = ""
-		} else {
-			area = strings.TrimSpace(gb18030Decode([]byte(area)))
+	ispMode := data[ispPos]
+	if ispMode == redirectMode1 || ispMode == redirectMode2 {
+		ispPos = byte3ToUInt32(data[ispPos+1 : ispPos+4])
+	}
+	if ispPos > 0 {
+		for i := ispPos; i < dataLen; i++ {
+			if data[i] == 0 {
+				isp = string(data[ispPos:i])
+				if isp != "" {
+					if strings.Contains(isp, "CZ88.NET") {
+						isp = ""
+					} else {
+						isp = strings.TrimSpace(gb18030Decode([]byte(isp)))
+					}
+				}
+				break
+			}
 		}
 	}
-	ipCache.Store(queryIp, cache{City: city, Area: area})
+	ipCache.Store(queryIp, cache{City: city, Isp: isp})
 	return
 }
 
diff --git a/qqwry_test.go b/qqwry_test.go
index 011661b..b3c2fdb 100644
--- a/qqwry_test.go
+++ b/qqwry_test.go
@@ -12,9 +12,9 @@ func init() {
 
 func TestQueryIP(t *testing.T) {
 	queryIp := "1.1.1.1"
-	city, area, err := QueryIP(queryIp)
+	city, isp, err := QueryIP(queryIp)
 	if err != nil {
 		t.Fatal(err)
 	}
-	t.Logf("城市：%s，区域：%s", city, area)
+	t.Logf("城市：%s，运营商：%s", city, isp)
 }
diff --git a/server/server.go b/server/server.go
index ff522b9..25d6f87 100644
--- a/server/server.go
+++ b/server/server.go
@@ -13,7 +13,7 @@ type resp struct {
 	IP   string `json:"ip"`
 	Err  string `json:"err"`
 	City string `json:"city"`
-	Area string `json:"area"`
+	Isp  string `json:"isp"`
 }
 
 func init() {
@@ -35,12 +35,12 @@ func IpAPI(writer http.ResponseWriter, request *http.Request) {
 		ip, _, _ = net.SplitHostPort(request.RemoteAddr)
 	}
 	rw := &resp{IP: ip}
-	city, area, err := qqwry.QueryIP(ip)
+	city, isp, err := qqwry.QueryIP(ip)
 	if err != nil {
 		rw.Err = err.Error()
 	} else {
 		rw.City = city
-		rw.Area = area
+		rw.Isp = isp
 	}
 	b, _ := json.MarshalIndent(rw, "", "    ")
 	_, _ = writer.Write(b)