diff --git a/bk/prefix/as4837.txt b/bk/prefix/as4837.txt
index f8b11a1..d4749e2 100644
--- a/bk/prefix/as4837.txt
+++ b/bk/prefix/as4837.txt
@@ -10,6 +10,7 @@
 2406:cac0::/40
 2407:6c40:1500::/48
 2407:6c40:1600::/40
+2408:8000:1010::/48
 2408:8000:10fe::/48
 2408:8000:10ff::/48
 2408:8000:2000::/36
@@ -90,7 +91,12 @@
 2408:8000:f100::/48
 2408:8000:f200::/48
 2408:8001:1000::/36
+2408:8001:100::/48
 2408:8001:2000::/36
+2408:8001:200::/48
+2408:8001:242::/48
+2408:8001:282::/48
+2408:8001:2c2::/48
 2408:8001:3002::/48
 2408:8001:3012::/48
 2408:8001:3022::/48
@@ -113,12 +119,20 @@
 2408:8001:3132::/48
 2408:8001:3142::/48
 2408:8001:3152::/48
+2408:8001:342::/48
+2408:8001:382::/48
 2408:8001:4000::/36
 2408:8001:4000::/48
 2408:8001:4010::/48
 2408:8001:4020::/48
+2408:8001:402::/48
+2408:8001:4c2::/48
 2408:8001:5000::/36
 2408:8001:5000::/48
+2408:8001:502::/48
+2408:8001:542::/48
+2408:8001:582::/48
+2408:8001:5c2::/48
 2408:8001:6000::/36
 2408:8001:7000::/36
 2408:8001:7030::/48
diff --git a/bk/prefix/as4837.txt.manifest.json b/bk/prefix/as4837.txt.manifest.json
index 2f8eb39..fa5a152 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": 600,
-  "sha256": "03a9a5b4ca1034a7c66f18f19e0d04ad7bbf7dacfb3dc2974029dc74da0773e0",
-  "generated_at": "2026-08-15T01:21:11Z"
+  "count": 614,
+  "sha256": "60de6981b79204f1f9add6e9e5a022edaf06a00f89d91f72b31d7e100a87c28a",
+  "generated_at": "2026-08-18T01:20:16Z"
 }