code,	size,	name,	comment
4,	32,	ip4,
6,	16,	tcp,
273,	16,	udp,
33,	16,	dccp,
41,	128,	ip6,
42,	V,	ip6zone,	rfc4007 IPv6 zone
43,	8,	ipcidr, CIDR mask for IP addresses
53,	V,	dns,  domain name resolvable to both IPv6 and IPv4 addresses
54,	V,	dns4, domain name resolvable only to IPv4 addresses
55,	V,	dns6, domain name resolvable only to IPv6 addresses
56,	V,	dnsaddr,
132,	16,	sctp,
301,	0,	udt,
302,	0,	utp,
400,	V,	unix,	Percent-encoded path to a Unix domain socket
421,	V,	p2p,	preferred over /ipfs
421,	V,	ipfs,	backwards compatibility; equivalent to /p2p
444,	96,	onion,
445,	296,	onion3,
446,	V,	garlic64,
447,	V,	garlic32,
448,	0,	tls,	Transport Layer Security
449,	V,	sni,	Server Name Indication RFC 6066 § 3
454,	0,	noise,
460,	0,	quic,
461,	0,	quic-v1,
465,	0,	webtransport,
466,	V,	certhash,
480,	0,	http,	HyperText Transfer Protocol
481,	V,	http-path,	Percent-encoded path to an HTTP resource
443,	0,	https,	Deprecated alias for /tls/http
477,	0,	ws,	WebSockets
478,	0,	wss,	Deprecated alias for /tls/ws
479,	0,	p2p-websocket-star, Deprecated
277,	0,	p2p-stardust, Deprecated
275,	0,	p2p-webrtc-star, Deprecated - Use webrtc or webrtc-direct instead
276,	0,	p2p-webrtc-direct, Deprecated - Use webrtc or webrtc-direct instead
280,	0,	webrtc-direct, ICE-lite webrtc transport with SDP munging during connection establishment and without use of a STUN server
281, 	0,	webrtc, webrtc transport where connection establishment is according to w3c spec
290,	0,	p2p-circuit,
777,	V, memory, in memory transport for self-dialing and testing; arbitrary