diff --git a/internal/common/common.go b/internal/common/common.go
index cbed767..4dc83e1 100644
--- a/internal/common/common.go
+++ b/internal/common/common.go
@@ -26,12 +26,11 @@ type DataStruct struct {
 }
 
 type ASNDataResponse struct {
-	ASNDetails    ASNDetails    `json:"asn_details"`
-	Prefixes      PrefixInfo    `json:"prefixes"`
-	SourceDetails SourceDetails `json:"source_details"`
+	Details  Details    `json:"details"`
+	Prefixes PrefixInfo `json:"prefixes"`
 }
 
-type ASNDetails struct {
+type Details struct {
 	ASN  uint   `json:"asn"`
 	Name string `json:"name"`
 }
@@ -41,10 +40,6 @@ type PrefixInfo struct {
 	IPv6 []string `json:"ipv6"`
 }
 
-type SourceDetails struct {
-	Source string `json:"source"`
-}
-
 // Global caches with 10 minute TTL
 var ipCache = NewIPCache(10 * time.Minute)
 var asnCache = NewASNCache(10 * time.Minute)
@@ -214,7 +209,7 @@ func LookupASNData(geoIP *db.GeoIPManager, targetASN uint) (*ASNDataResponse, er
 	sort.Strings(ipv6Prefixes)
 
 	response := &ASNDataResponse{
-		ASNDetails: ASNDetails{
+		Details: Details{
 			ASN:  targetASN,
 			Name: orgName,
 		},
@@ -222,9 +217,6 @@ func LookupASNData(geoIP *db.GeoIPManager, targetASN uint) (*ASNDataResponse, er
 			IPv4: ipv4Prefixes,
 			IPv6: ipv6Prefixes,
 		},
-		SourceDetails: SourceDetails{
-			Source: "GeoLite2-ASN.mmdb",
-		},
 	}
 
 	asnCache.Set(targetASN, response)
diff --git a/readme.md b/readme.md
index 4ec2705..4908334 100644
--- a/readme.md
+++ b/readme.md
@@ -38,6 +38,39 @@ $ curl https://ip.albert.lol/9.9.9.9/city
 }
 ```
 
+### Get details about an ASN
+```sh
+$ curl https://ip.albert.lol/AS13335
+{
+  "details": {
+    "asn": 19281,
+    "name": "QUAD9-AS-1"
+  },
+  "prefixes": {
+    "ipv4": [
+      "149.112.112.0/24",
+      "149.112.149.0/24",
+      "199.249.255.0/24",
+      "9.9.9.0/24"
+    ],
+    "ipv6": [
+      "2001:0:909:900::/56",
+      "2001:0:9570:7000::/56",
+      "2001:0:9570:9500::/56",
+      "2001:0:c7f9:ff00::/56",
+      "2002:909:900::/40",
+      "2002:9570:7000::/40",
+      "2002:9570:9500::/40",
+      "2002:c7f9:ff00::/40",
+      "2620:fe::/48",
+      "::909:900/120",
+      "::9570:7000/120",
+      "::9570:9500/120",
+      "::c7f9:ff00/120"
+    ]
+  }
+}
+```
 ## Running Locally
 
 ### With Docker