diff --git a/src/backend/services/geoip.ts b/src/backend/services/geoip.ts
index 79f3722..3197987 100644
--- a/src/backend/services/geoip.ts
+++ b/src/backend/services/geoip.ts
@@ -111,9 +111,12 @@ class GeoIPService {
 
     try {
       const response: City = this.cityReader!.city(ip);
+      const asnResponse: Asn = this.asnReader!.asn(ip);
+
       const result: DetailedGeoIPResponse = {
         ip,
         location: response as GeoIPLocation,
+        asn: asnResponse,
       };
 
       this.cache.set(cacheKey, result);
diff --git a/src/backend/types/index.ts b/src/backend/types/index.ts
index cadf631..42012df 100644
--- a/src/backend/types/index.ts
+++ b/src/backend/types/index.ts
@@ -37,6 +37,13 @@ export interface GeoIPLocation {
   };
 }
 
+export interface AsnInfo {
+  autonomousSystemNumber?: number;
+  autonomousSystemOrganization?: string;
+  ipAddress?: string;
+  network?: string;
+}
+
 export interface SimplifiedGeoIPResponse {
   ip: string;
   country: string;
@@ -58,6 +65,7 @@ export interface SimplifiedGeoIPResponse {
 export interface DetailedGeoIPResponse {
   ip: string;
   location: GeoIPLocation;
+  asn: AsnInfo;
 }
 
 export interface BatchGeoIPRequest {