diff --git a/library/core/src/net/ip_addr.rs b/library/core/src/net/ip_addr.rs
index 1ef876a3163..4b5862d98a3 100644
--- a/library/core/src/net/ip_addr.rs
+++ b/library/core/src/net/ip_addr.rs
@@ -771,7 +771,11 @@ pub const fn is_global(&self) -> bool {
             || self.is_loopback()
             || self.is_link_local()
             // addresses reserved for future protocols (`192.0.0.0/24`)
-            ||(self.octets()[0] == 192 && self.octets()[1] == 0 && self.octets()[2] == 0)
+            // .9 and .10 are documented as globally reachable so they're excluded
+            || (
+                self.octets()[0] == 192 && self.octets()[1] == 0 && self.octets()[2] == 0
+                && self.octets()[3] != 9 && self.octets()[3] != 10
+            )
             || self.is_documentation()
             || self.is_benchmarking()
             || self.is_reserved()
@@ -1515,8 +1519,12 @@ pub const fn is_global(&self) -> bool {
                     // AS112-v6 (`2001:4:112::/48`)
                     || matches!(self.segments(), [0x2001, 4, 0x112, _, _, _, _, _])
                     // ORCHIDv2 (`2001:20::/28`)
-                    || matches!(self.segments(), [0x2001, b, _, _, _, _, _, _] if b >= 0x20 && b <= 0x2F)
+                    // Drone Remote ID Protocol Entity Tags (DETs) Prefix (`2001:30::/28`)`
+                    || matches!(self.segments(), [0x2001, b, _, _, _, _, _, _] if b >= 0x20 && b <= 0x3F)
                 ))
+            // 6to4 (`2002::/16`) – it's not explicitly documented as globally reachable,
+            // IANA says N/A.
+            || matches!(self.segments(), [0x2002, _, _, _, _, _, _, _])
             || self.is_documentation()
             || self.is_unique_local()
             || self.is_unicast_link_local())
diff --git a/library/core/tests/net/ip_addr.rs b/library/core/tests/net/ip_addr.rs
index 7530fc08487..7f7802c221a 100644
--- a/library/core/tests/net/ip_addr.rs
+++ b/library/core/tests/net/ip_addr.rs
@@ -461,6 +461,10 @@ macro_rules! check {
     check!("198.18.54.2", benchmarking);
     check!("198.19.255.255", benchmarking);
     check!("192.0.0.0");
+    check!("192.0.0.8");
+    check!("192.0.0.9", global);
+    check!("192.0.0.10", global);
+    check!("192.0.0.11");
     check!("192.0.0.255");
     check!("192.0.0.100");
     check!("240.0.0.0", reserved);
@@ -480,6 +484,10 @@ macro_rules! ip {
     }
 
     macro_rules! check {
+        ($s:expr, &[$($octet:expr),*]) => {
+            check!($s, &[$($octet),*], 0);
+        };
+
         ($s:expr, &[$($octet:expr),*], $mask:expr) => {
             assert_eq!($s, ip!($s).to_string());
             let octets = &[$($octet),*];
@@ -656,8 +664,8 @@ macro_rules! check {
         &[0x20, 1, 0, 0x20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
         global | unicast_global
     );
-
-    check!("2001:30::", &[0x20, 1, 0, 0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], unicast_global);
+    check!("2001:30::", &[0x20, 1, 0, 0x30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], global | unicast_global);
+    check!("2001:40::", &[0x20, 1, 0, 0x40, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], unicast_global);
 
     check!(
         "2001:200::",
@@ -665,6 +673,8 @@ macro_rules! check {
         global | unicast_global
     );
 
+    check!("2002::", &[0x20, 0x02, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], unicast_global);
+
     check!("fc00::", &[0xfc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], unique_local);
 
     check!(