diff --git a/bk/prefix/as4837.txt b/bk/prefix/as4837.txt
index f5e34eb..7a08252 100644
--- a/bk/prefix/as4837.txt
+++ b/bk/prefix/as4837.txt
@@ -1,3 +1,5 @@
+2001:4510
+2001:4511
 2402:f140:ff13
 2402:f140:ff14
 2404:6500:dcb3
diff --git a/bk/prefix/as58453.txt b/bk/prefix/as58453.txt
index 4246c12..302af75 100644
--- a/bk/prefix/as58453.txt
+++ b/bk/prefix/as58453.txt
@@ -10,7 +10,6 @@
 2402:4f00:4003
 2620:107:4008:1c2
 2620:107:4008:1d9
-2620:107:4008:1e8
 2620:107:4008:bbef
 2620:107:4008:bd27
 2620:107:4008:d23c
diff --git a/bk/prefix/as9808.txt b/bk/prefix/as9808.txt
index dd52fa2..b1aa425 100644
--- a/bk/prefix/as9808.txt
+++ b/bk/prefix/as9808.txt
@@ -2,7 +2,6 @@
 2401:8be0
 2404:bc0
 2406:cf00
-2407:8f40:2
 2409
 2409:8000
 2409:8000:3004
@@ -281,6 +280,7 @@
 2409:8043:2b0b
 2409:8043:2c01
 2409:8043:2c04
+2409:8043:2c0c
 2409:804b:2903
 2409:804b:2904
 2409:804b:2905