Sometimes I needs RFC1700. But it is difficult to find the file in a hurry.
Currently, RFC 1700 is replaced by an On-line Database.

RFC3232 comments
Since 1994, this sequence of RFCs have been replaced by an online database accessible through a web page (currently, www.iana.org). The purpose of the present RFC is to note this fact and to officially obsolete RFC 1700, whose status changes to Historic. RFC 1700 is obsolete, and its values are incomplete and in some cases may be wrong.
And refer to the following URL…
PS) But, if you needs RFC1700, it can be downloaded in the next homepage.
RFC 1700 download: http://www.ietf.org/rfc/rfc1700.txt

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