diff --git a/bk/prefix/as4837.txt b/bk/prefix/as4837.txt
index 226088c..70dffe7 100644
--- a/bk/prefix/as4837.txt
+++ b/bk/prefix/as4837.txt
@@ -81,6 +81,7 @@
 2408:8000:80a0::/48
 2408:8000:80b0::/48
 2408:8000:80c0::/48
+2408:8000:80d0::/48
 2408:8000::/48
 2408:8000:a000::/36
 2408:8000:a002::/48
diff --git a/bk/prefix/as4837.txt.manifest.json b/bk/prefix/as4837.txt.manifest.json
index 6dca140..a3aa0cd 100644
--- a/bk/prefix/as4837.txt.manifest.json
+++ b/bk/prefix/as4837.txt.manifest.json
@@ -1,7 +1,7 @@
 {
   "schema": "backtrace.asn-prefixes/v1",
   "file": "as4837.txt",
-  "count": 651,
-  "sha256": "9ccc394917b267ddca604f302a26d1ac0c55c844cf2ceec281431dad56b6bcc1",
-  "generated_at": "2026-09-02T03:32:25Z"
+  "count": 652,
+  "sha256": "3fc90ea014b3927f100f263533e74870cd7de86247d68f1cc88728ea22c0183b",
+  "generated_at": "2026-09-03T03:32:25Z"
 }