diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0799b303..8da00550 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,17 @@
 CHANGELOG
 =========
 
+5.2.0 (unreleased)
+------------------
+
+* A new `residential` field has been added to the `Anonymizer` record. This
+  is an `AnonymizerFeed` record containing `confidence`, `networkLastSeen`,
+  and `providerName` fields with residential proxy data for the network.
+  `residential` may be populated even when none of the other fields on
+  `Anonymizer` are set. The `AnonymizerFeed` record is intended to be reused
+  for additional feeds, such as VPNs, mobile networks, and hosting or
+  datacenter providers, that may be added in the future.
+
 5.1.0 (2026-05-12)
 ------------------
 
diff --git a/src/main/java/com/maxmind/geoip2/record/Anonymizer.java b/src/main/java/com/maxmind/geoip2/record/Anonymizer.java
index 6c94527a..cbc56ea2 100644
--- a/src/main/java/com/maxmind/geoip2/record/Anonymizer.java
+++ b/src/main/java/com/maxmind/geoip2/record/Anonymizer.java
@@ -31,6 +31,9 @@
  * @param providerName The name of the VPN provider (e.g., NordVPN, SurfShark, etc.) associated
  *                     with the network. This is only available from the GeoIP Insights
  *                     web service.
+ * @param residential Residential proxy data for the network. This may be populated even when
+ *                    none of the other fields on this record are set. This is only available
+ *                    from the GeoIP Insights web service.
  */
 public record Anonymizer(
     @JsonProperty("confidence")
@@ -58,14 +61,68 @@ public record Anonymizer(
     LocalDate networkLastSeen,
 
     @JsonProperty("provider_name")
-    String providerName
+    String providerName,
+
+    @JsonProperty("residential")
+    AnonymizerFeed residential
 ) implements JsonSerializable {
 
+    /**
+     * Compact canonical constructor that sets a default for a null {@code residential} value.
+     */
+    public Anonymizer {
+        residential = residential != null ? residential : new AnonymizerFeed();
+    }
+
     /**
      * Constructs an {@code Anonymizer} record with {@code null} values for all the nullable
      * fields and {@code false} for all boolean fields.
      */
     public Anonymizer() {
-        this(null, false, false, false, false, false, false, null, null);
+        this(null, false, false, false, false, false, false, null, null, null);
+    }
+
+    /**
+     * Constructs an {@code Anonymizer} record without the {@code residential} field.
+     *
+     * @param confidence the confidence that the network is an actively used VPN service
+     * @param isAnonymous whether the IP address belongs to any sort of anonymous network
+     * @param isAnonymousVpn whether the IP address is registered to an anonymous VPN provider
+     * @param isHostingProvider whether the IP address belongs to a hosting or VPN provider
+     * @param isPublicProxy whether the IP address belongs to a public proxy
+     * @param isResidentialProxy whether the IP address is on a suspected anonymizing network
+     *                           and belongs to a residential ISP
+     * @param isTorExitNode whether the IP address is a Tor exit node
+     * @param networkLastSeen the last day that the network was sighted in our analysis of
+     *                        anonymized networks
+     * @param providerName the name of the VPN provider associated with the network
+     * @deprecated Use the canonical constructor that also accepts the {@code residential}
+     *             field. This constructor is provided for backward compatibility and will be
+     *             removed in version 6.0.0.
+     */
+    @Deprecated(since = "5.2.0", forRemoval = true)
+    public Anonymizer(
+        Integer confidence,
+        boolean isAnonymous,
+        boolean isAnonymousVpn,
+        boolean isHostingProvider,
+        boolean isPublicProxy,
+        boolean isResidentialProxy,
+        boolean isTorExitNode,
+        LocalDate networkLastSeen,
+        String providerName
+    ) {
+        this(
+            confidence,
+            isAnonymous,
+            isAnonymousVpn,
+            isHostingProvider,
+            isPublicProxy,
+            isResidentialProxy,
+            isTorExitNode,
+            networkLastSeen,
+            providerName,
+            null
+        );
     }
 }
diff --git a/src/main/java/com/maxmind/geoip2/record/AnonymizerFeed.java b/src/main/java/com/maxmind/geoip2/record/AnonymizerFeed.java
new file mode 100644
index 00000000..cf5d5c26
--- /dev/null
+++ b/src/main/java/com/maxmind/geoip2/record/AnonymizerFeed.java
@@ -0,0 +1,43 @@
+package com.maxmind.geoip2.record;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.maxmind.geoip2.JsonSerializable;
+import java.time.LocalDate;
+
+/**
+ * <p>
+ * Contains data for one type of anonymizer detection, currently residential proxies. Additional
+ * feeds, such as VPNs, mobile networks, and hosting or datacenter providers, may be added to the
+ * {@link Anonymizer} record in the future using this same record type.
+ * </p>
+ * <p>
+ * This record is returned by the GeoIP Insights web service.
+ * </p>
+ *
+ * @param confidence A score ranging from 1 to 99 that represents our percent confidence that
+ *                   the network is an actively used residential proxy. This is only available
+ *                   from the GeoIP Insights web service.
+ * @param networkLastSeen The last day that the network was sighted in our analysis of
+ *                        residential proxies. This is only available from the GeoIP Insights
+ *                        web service.
+ * @param providerName The name of the residential proxy provider associated with the network.
+ *                     This is only available from the GeoIP Insights web service.
+ */
+public record AnonymizerFeed(
+    @JsonProperty("confidence")
+    Integer confidence,
+
+    @JsonProperty("network_last_seen")
+    LocalDate networkLastSeen,
+
+    @JsonProperty("provider_name")
+    String providerName
+) implements JsonSerializable {
+
+    /**
+     * Constructs an {@code AnonymizerFeed} record with {@code null} values for all fields.
+     */
+    public AnonymizerFeed() {
+        this(null, null, null);
+    }
+}
diff --git a/src/test/java/com/maxmind/geoip2/model/InsightsResponseTest.java b/src/test/java/com/maxmind/geoip2/model/InsightsResponseTest.java
index 38905e77..f4081dd4 100644
--- a/src/test/java/com/maxmind/geoip2/model/InsightsResponseTest.java
+++ b/src/test/java/com/maxmind/geoip2/model/InsightsResponseTest.java
@@ -16,6 +16,7 @@
 import com.maxmind.geoip2.exception.GeoIp2Exception;
 import com.maxmind.geoip2.model.ConnectionTypeResponse.ConnectionType;
 import com.maxmind.geoip2.record.Anonymizer;
+import com.maxmind.geoip2.record.AnonymizerFeed;
 import com.maxmind.geoip2.record.Location;
 import com.maxmind.geoip2.record.MaxMind;
 import com.maxmind.geoip2.record.Postal;
@@ -206,6 +207,25 @@ public void testAnonymizer() {
             anonymizer.providerName(),
             "anonymizer.providerName() does not return NordVPN"
         );
+
+        AnonymizerFeed residential = anonymizer.residential();
+
+        assertNotNull(residential, "anonymizer.residential() returns null");
+        assertEquals(
+            Integer.valueOf(82),
+            residential.confidence(),
+            "anonymizer.residential().confidence() does not return 82"
+        );
+        assertEquals(
+            LocalDate.parse("2026-05-11"),
+            residential.networkLastSeen(),
+            "anonymizer.residential().networkLastSeen() does not return 2026-05-11"
+        );
+        assertEquals(
+            "quickshift",
+            residential.providerName(),
+            "anonymizer.residential().providerName() does not return quickshift"
+        );
     }
 
     @Test
diff --git a/src/test/java/com/maxmind/geoip2/model/JsonTest.java b/src/test/java/com/maxmind/geoip2/model/JsonTest.java
index 97e69a8b..f75157f2 100644
--- a/src/test/java/com/maxmind/geoip2/model/JsonTest.java
+++ b/src/test/java/com/maxmind/geoip2/model/JsonTest.java
@@ -62,6 +62,11 @@ public void testInsightsSerialization() throws IOException {
             .put("is_tor_exit_node", true)
             .put("network_last_seen", "2024-12-31")
             .put("provider_name", "NordVPN")
+            .startObjectField("residential")
+            .put("confidence", 82)
+            .put("network_last_seen", "2026-05-11")
+            .put("provider_name", "quickshift")
+            .end()
             .end()
             .startObjectField("country")
             .startObjectField("names")
diff --git a/src/test/resources/test-data/insights0.json b/src/test/resources/test-data/insights0.json
index 45118585..1f56bb33 100644
--- a/src/test/resources/test-data/insights0.json
+++ b/src/test/resources/test-data/insights0.json
@@ -94,6 +94,11 @@
     "is_residential_proxy": true,
     "is_tor_exit_node": true,
     "network_last_seen": "2024-12-31",
-    "provider_name": "NordVPN"
+    "provider_name": "NordVPN",
+    "residential": {
+      "confidence": 82,
+      "network_last_seen": "2026-05-11",
+      "provider_name": "quickshift"
+    }
   }
 }
\ No newline at end of file
diff --git a/src/test/resources/test-data/insights1.json b/src/test/resources/test-data/insights1.json
index 6cc70cba..666bcbb1 100644
--- a/src/test/resources/test-data/insights1.json
+++ b/src/test/resources/test-data/insights1.json
@@ -110,6 +110,11 @@
     "is_residential_proxy": true,
     "is_tor_exit_node": true,
     "network_last_seen": "2024-12-31",
-    "provider_name": "NordVPN"
+    "provider_name": "NordVPN",
+    "residential": {
+      "confidence": 82,
+      "network_last_seen": "2026-05-11",
+      "provider_name": "quickshift"
+    }
   }
 }
\ No newline at end of file