diff --git a/Sources/ContainerizationExtras/CIDRv4.swift b/Sources/ContainerizationExtras/CIDRv4.swift
index fb7ead78..7bc7c562 100644
--- a/Sources/ContainerizationExtras/CIDRv4.swift
+++ b/Sources/ContainerizationExtras/CIDRv4.swift
@@ -16,7 +16,7 @@
 
 /// Describes an IPv4 CIDR address block.
 @frozen
-public struct CIDRv4: CustomStringConvertible, Equatable, Sendable, Hashable {
+public struct CIDRv4: CustomStringConvertible, Equatable, Sendable, Hashable, Codable {
     /// The IP component of this CIDR address.
     public let address: IPv4Address
 
diff --git a/Sources/ContainerizationExtras/CIDRv6.swift b/Sources/ContainerizationExtras/CIDRv6.swift
index 42be276b..32f15b74 100644
--- a/Sources/ContainerizationExtras/CIDRv6.swift
+++ b/Sources/ContainerizationExtras/CIDRv6.swift
@@ -16,7 +16,7 @@
 
 /// Describes an IPv4 or IPv6 CIDR address block.
 @frozen
-public struct CIDRv6: CustomStringConvertible, Equatable, Sendable, Hashable {
+public struct CIDRv6: CustomStringConvertible, Equatable, Sendable, Hashable, Codable {
 
     /// The IP component of this CIDR address.
     public let address: IPv6Address
diff --git a/Sources/ContainerizationExtras/IPv4Address.swift b/Sources/ContainerizationExtras/IPv4Address.swift
index cfa6caa4..f8cf5be0 100644
--- a/Sources/ContainerizationExtras/IPv4Address.swift
+++ b/Sources/ContainerizationExtras/IPv4Address.swift
@@ -15,7 +15,7 @@
 //===----------------------------------------------------------------------===//
 
 @frozen
-public struct IPv4Address: Sendable, Hashable, CustomStringConvertible, Equatable, Comparable {
+public struct IPv4Address: Sendable, Hashable, CustomStringConvertible, Equatable, Comparable, Codable {
     public let value: UInt32
 
     @inlinable
diff --git a/Sources/ContainerizationExtras/IPv6Address.swift b/Sources/ContainerizationExtras/IPv6Address.swift
index e7e82caa..739d846e 100644
--- a/Sources/ContainerizationExtras/IPv6Address.swift
+++ b/Sources/ContainerizationExtras/IPv6Address.swift
@@ -15,7 +15,7 @@
 //===----------------------------------------------------------------------===//
 
 /// Represents an IPv6 network address conforming to RFC 5952 and RFC 4291.
-public struct IPv6Address: Sendable, Hashable, CustomStringConvertible, Equatable, Comparable {
+public struct IPv6Address: Sendable, Hashable, CustomStringConvertible, Equatable, Comparable, Codable {
     @usableFromInline
     internal let value: UInt128
 
diff --git a/Sources/ContainerizationExtras/Prefix.swift b/Sources/ContainerizationExtras/Prefix.swift
index b067fba4..c565b9d1 100644
--- a/Sources/ContainerizationExtras/Prefix.swift
+++ b/Sources/ContainerizationExtras/Prefix.swift
@@ -16,7 +16,7 @@
 
 /// CIDR prefix length (e.g., `/24` for a 24-bit network mask).
 @frozen
-public struct Prefix: Sendable, CustomStringConvertible, Hashable {
+public struct Prefix: Sendable, CustomStringConvertible, Hashable, Codable {
     public let length: UInt8
 
     /// Create a prefix (0-128). Use `ipv4(_:)` or `ipv6(_:)` for version-specific validation.