7.2 Twenty-five IPs or Less

An NBNS is supposed to keep a complete list of all IPs associated with each NBT name ( group or multi- homed ). If the list is too large to fit in a single UDP Name Query Reply datagram then, according to the RFCs, the NBNS is supposed to send a partial list with the TR uncation bit set. The client may then repeat the query using TCP port 137.

...but that never happens. If anyone ever did provide support for NBT Name Service over TCP, the code is now lost in space. As explained earlier, when WINS sends a NAME QUERY RESPONSE it will contain a maximum of 25 IPs per name.