HTTP Status Codes / Verbs List

statusCodes

CONNECT
DELETE
GET
HEAD
OPTIONS
PATCH
POST 
PUT
TRACE

100 Continue
101 Switching Protocols
102 Processing (WebDAV; RFC 2518)
200 OK
201 Created
202 Accepted
203 Non-Authoritative Information (since HTTP/1.1)
204 No Content
205 Reset Content
206 Partial Content
207 Multi-Status (WebDAV; RFC 4918)
208 Already Reported (WebDAV; RFC 5842)
250 Low on Storage Space (RTSP; RFC 2326)
226 IM Used (RFC 3229)
300 Multiple Choices
301 Moved Permanently
302 Found
303 See Other (since HTTP/1.1)
304 Not Modified
305 Use Proxy (since HTTP/1.1)
306 Switch Proxy
307 Temporary Redirect (since HTTP/1.1)
308 Permanent Redirect (approved as experimental RFC)[13]
400 Bad Request
401 Unauthorized
402 Payment Required
403 Forbidden
404 Not Found
405 Method Not Allowed
406 Not Acceptable
407 Proxy Authentication Required
408 Request Timeout
409 Conflict
410 Gone
411 Length Required
412 Precondition Failed
413 Request Entity Too Large
414 Request-URI Too Long
415 Unsupported Media Type
416 Requested Range Not Satisfiable
417 Expectation Failed
418 I'm a teapot (RFC 2324)
420 Enhance Your Calm (Twitter)
422 Unprocessable Entity (WebDAV; RFC 4918)
423 Locked (WebDAV; RFC 4918)
424 Failed Dependency (WebDAV; RFC 4918)
424 Method Failure (WebDAV)[15]
425 Unordered Collection (Internet draft)
426 Upgrade Required (RFC 2817)
428 Precondition Required (RFC 6585)
429 Too Many Requests (RFC 6585)
431 Request Header Fields Too Large (RFC 6585)
436 Bad Identity-Info (SIP)
444 No Response (Nginx)
449 Retry With (Microsoft)
450 Blocked by Windows Parental Controls (Microsoft)
451 Parameter Not Understood (RTSP)
451 Unavailable For Legal Reasons (Internet draft)
451 Redirect (Microsoft)
452 Conference Not Found (RTSP)
453 Not Enough Bandwidth (RTSP)
454 Session Not Found (RTSP)
455 Method Not Valid in This State (RTSP)
456 Header Field Not Valid for Resource (RTSP)
457 Invalid Range (RTSP)
458 Parameter Is Read-Only (RTSP)
459 Aggregate Operation Not Allowed (RTSP)
460 Only Aggregate Operation Allowed (RTSP)
461 Unsupported Transport (RTSP)
462 Destination Unreachable (RTSP)
494 Request Header Too Large (Nginx)
495 Cert Error (Nginx)
496 No Cert (Nginx)
497 HTTP to HTTPS (Nginx)
499 Client Closed Request (Nginx)
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported
506 Variant Also Negotiates (RFC 2295)
507 Insufficient Storage (WebDAV; RFC 4918)
508 Loop Detected (WebDAV; RFC 5842)
509 Bandwidth Limit Exceeded (Apache bw/limited extension)
510 Not Extended (RFC 2774)
511 Network Authentication Required (RFC 6585)
520 Web server is returning an unknown error (Cloudflare)
521 Web server is down (Cloudflare)
522 The connection has timed out (Cloudflare)
523 Origin is unreachable (Cloudflare)
524 A timeout occurred (Cloudflare)
525 SSL handshake (Cloudflare)
526 Invalid SSL certificate (Cloudflare)
527 Railgun Listener to Origin (Cloudflare)
551 Option not supported (RTSP)
598 Network read timeout error (Microsoft)
599 Network connect timeout error (Microsoft)

Missing:

436 Bad Identity-Info (SIP) 520 Web server is returning an unknown error (Cloudflare) 521 Web server is down (Cloudflare) 522 The connection has timed out (Cloudflare) 523 Origin is unreachable (Cloudflare) 524 A timeout occurred (Cloudflare) 525 SSL handshake (Cloudflare) 526 Invalid SSL certificate (Cloudflare) 527 Railgun Listener to Origin (Cloudflare)

Updated - thank you

more from wikipedia :

I think you can just copy & paste ;)