These RFCs have been submitted over the past two decades as spoofs of the traditional mechanism for specifying how the Internet is to operate. I was first aware of RFC 1149, but discovered there's a tradition of submitting these on April 1.
In addition to the above, I've got a (nearly current) collection of RFCs. Here's a text file identifying the real RFCs. You can fetch any of these using a URL in the form <http://cs.ups.edu/~rbentson/Standards/RFCs/rfc####.txt> where "####" is replaced by the two, three, or four digit RFC number.