Introduction
Using reserved ports 32801 and 32811, WWMLS allows public access to registry listings to
users and accredited OpenMLS(R) registrars. Like the WHOIS protocol, the Multiple
Listing Service Network Protocol binds to port 32801 using tcp and udp. Users and registrars
request a listing’s information by sending a message to an MLSN server which returns listing
information or a “no match” response.
The other half of WWMLS involves the Real Estate Transport Protocol (RETP). RETP distributes
listings from registrar to registry to registrars. The messaging protocol uses reserved port
32811 and tcp only.
The World Wide MLS(tm) was invented on October 29, 2011 by Corey Leong, Executive Director of
the GR8C.
