{
    "_sources": {
        "ianaIpv4": {
            "title": "IANA IPv4 Special-Purpose Address Registry",
            "url": "https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml",
            "last_updated": "2025-10-09"
        },
        "ianaIpv6": {
            "title": "IANA IPv6 Special-Purpose Address Registry",
            "url": "https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml",
            "last_updated": "2025-10-09"
        },
        "ianaIpv4Multicast": {
            "title": "IANA IPv4 Multicast Address Space",
            "url": "https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml",
            "last_updated": "2026-01-27"
        },
        "ianaIpv6Multicast": {
            "title": "IANA IPv6 Multicast Address Space",
            "url": "https://www.iana.org/assignments/ipv6-multicast-addresses/ipv6-multicast-addresses.xhtml",
            "last_updated": "2026-02-02"
        },
        "imds": {
            "title": "Microsoft Learn Azure Instance Metadata Service",
            "url": "https://learn.microsoft.com/en-us/azure/virtual-machines/instance-metadata-service?tabs=windows",
            "last_updated": "NA"
        },
        "wireserver": {
            "title": "Microsoft Learn Azure IP Address 168.63.129.16 Overview",
            "url": "https://learn.microsoft.com/en-us/azure/virtual-network/what-is-ip-address-168-63-129-16?tabs=windows",
            "last_updated": "NA"
        },
        "siteLocal": {
            "title": "Microsoft Learn IPv6 Link-local and Site-local Addresses",
            "url": "https://learn.microsoft.com/en-us/windows/win32/winsock/link-local-and-site-local-addresses-2",
            "last_updated": "NA"
        }
    },
    "amt": {
        "purpose": "AMT",
        "cidr": [
            "192.52.193.0/24",
            "2001:3::/32"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "as112": {
        "purpose": "AS112",
        "cidr": [
            "192.31.196.0/24",
            "192.175.48.0/24",
            "2001:4:112::/48",
            "2620:4f:8000::/48"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "benchmarking": {
        "purpose": "Benchmarking",
        "cidr": [
            "198.18.0.0/15",
            "2001:2::/48"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "deprecated": {
        "purpose": "Deprecated",
        "cidr": [
            "192.88.99.0/24",
            "2001:10::/28"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "detsPrefix": {
        "purpose": "Drone Remote ID Protocol Entity Tags (DETs) Prefix",
        "cidr": [
            "2001:30::/28"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "discardOnly": {
        "purpose": "Discard-Only Address Block",
        "cidr": [
            "100::/64"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "dnsSdAnycast": {
        "purpose": "DNS-SD Service Registration Protocol Anycast",
        "cidr": [
            "2001:1::3/128"
        ],
        "standaloneVariable": false,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "documentation": {
        "purpose": "Documentation",
        "cidr": [
            "192.0.2.0/24",
            "198.51.100.0/24",
            "203.0.113.0/24",
            "2001:db8::/32",
            "3fff::/20"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "dummy": {
        "purpose": "Dummy address",
        "cidr": [
            "192.0.0.8/32",
            "100:0:0:1::/64"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "ietfProtocol": {
        "purpose": "IETF Protocol Assignments",
        "cidr": [
            "192.0.0.0/24",
            "2001::/23"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "imds": {
        "purpose": "Instance Metadata Service",
        "cidr": [
            "169.254.169.254/32"
        ],
        "standaloneVariable": true,
        "_sources": [
            "imds"
        ]
    },
    "ipv4Ipv6Translat": {
        "purpose": "IPv4-IPv6 Translated",
        "cidr": [
            "64:ff9b::/96",
            "64:ff9b:1::/48"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "ipv4ServiceContinuity": {
        "purpose": "IPv4 Service Continuity Prefix",
        "cidr": [
            "192.0.0.0/29"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4"
        ]
    },
    "broadcast": {
        "purpose": "Limited Broadcast",
        "cidr": [
            "255.255.255.255/32"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4"
        ]
    },
    "linkLocal": {
        "purpose": "Link Local",
        "cidr": [
            "169.254.0.0/16",
            "fe80::/10"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6",
            "siteLocal"
        ]
    },
    "loopback": {
        "purpose": "Loopback",
        "cidr": [
            "127.0.0.0/8",
            "::1/128"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "multicast": {
        "purpose": "Multicast",
        "cidr": [
            "224.0.0.0/4",
            "ff00::/8"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4Multicast",
            "ianaIpv6Multicast"
        ]
    },
    "nat64Dns64Discovery": {
        "purpose": "NAT64/DNS64 Discovery",
        "cidr": [
            "192.0.0.170/32",
            "192.0.0.171/32"
        ],
        "standaloneVariable": false,
        "_sources": [
            "ianaIpv4"
        ]
    },
    "orchidv2": {
        "purpose": "ORCHIDv2",
        "cidr": [
            "2001:20::/28"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "pcpAnycast": {
        "purpose": "Port Control Protocol Anycast",
        "cidr": [
            "192.0.0.9/32",
            "2001:1::1/128"
        ],
        "standaloneVariable": false,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "privateUse": {
        "purpose": "Private-Use",
        "cidr": [
            "10.0.0.0/8",
            "172.16.0.0/12",
            "192.168.0.0/16"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4"
        ]
    },
    "reserved": {
        "purpose": "Reserved",
        "cidr": [
            "240.0.0.0/4"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4"
        ]
    },
    "sharedAddressSpace": {
        "purpose": "Shared Address Space",
        "cidr": [
            "100.64.0.0/10"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4"
        ]
    },
    "siteLocal": {
        "purpose": "Site Local",
        "cidr": [
            "fec0::/10"
        ],
        "standaloneVariable": true,
        "_sources": [
            "siteLocal"
        ]
    },
    "six4aaRelayAnycast": {
        "purpose": "6a44-relay Anycast Address",
        "cidr": [
            "192.88.99.2/32"
        ],
        "standaloneVariable": false,
        "_sources": [
            "ianaIpv4"
        ]
    },
    "sixto4": {
        "purpose": "6to4",
        "cidr": [
            "2002::/16"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "srv6Sid": {
        "purpose": "Segment Routing (SRv6) SIDs",
        "cidr": [
            "5f00::/16"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "teredo": {
        "purpose": "TEREDO",
        "cidr": [
            "2001::/32"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "turnAnycast": {
        "purpose": "Traversal Using Relays around NAT Anycast",
        "cidr": [
            "192.0.0.10/32",
            "2001:1::2/128"
        ],
        "standaloneVariable": false,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "uniqueLocal": {
        "purpose": "Unique Local Unicast",
        "cidr": [
            "fc00::/7"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv6"
        ]
    },
    "unspecified": {
        "purpose": "This host on this network; unspecified address",
        "cidr": [
            "0.0.0.0/8",
            "::/128"
        ],
        "standaloneVariable": true,
        "_sources": [
            "ianaIpv4",
            "ianaIpv6"
        ]
    },
    "wireserver": {
        "purpose": "Azure WireServer",
        "cidr": [
            "168.63.129.16/32"
        ],
        "standaloneVariable": true,
        "_sources": [
            "wireserver"
        ]
    },
    "recommendedV1": {
        "purpose": "Current list of recommended special-purpose addresses",
        "cidr": [
            "0.0.0.0/8",
            "10.0.0.0/8",
            "100.64.0.0/10",
            "127.0.0.0/8",
            "168.63.129.16/32",
            "169.254.0.0/16",
            "172.16.0.0/12",
            "192.0.0.0/24",
            "192.0.2.0/24",
            "192.31.196.0/24",
            "192.52.193.0/24",
            "192.88.99.0/24",
            "192.168.0.0/16",
            "192.175.48.0/24",
            "198.18.0.0/15",
            "198.51.100.0/24",
            "203.0.113.0/24",
            "224.0.0.0/4",
            "240.0.0.0/4",
            "::1/128",
            "::/128",
            "64:ff9b::/96",
            "64:ff9b:1::/48",
            "100::/64",
            "100:0:0:1::/64",
            "2001::/23",
            "2001:db8::/32",
            "2002::/16",
            "2620:4f:8000::/48",
            "3fff::/20",
            "5f00::/16",
            "fc00::/7",
            "fe80::/10",
            "fec0::/10",
            "ff00::/8"
        ],
        "standaloneVariable": true,
        "_notes": [
            "Skipping the following CIDR ranges that are already included in other CIDR ranges: 169.254.169.254/32, 192.0.0.0/29, 192.0.0.8/32, 192.0.0.9/32, 192.0.0.10/32, 192.0.0.170/32, 192.0.0.171/32, 192.88.99.2/32, 255.255.255.255/32, 2001::/32, 2001:1::1/128, 2001:1::2/128, 2001:1::3/128, 2001:2::/48, 2001:3::/32, 2001:4:112::/48, 2001:10::/28, 2001:20::/28, 2001:30::/28"
        ]
    }
}