'host by' is not correct and usable in written English.
You can use the phrase 'hosted by' or 'hosting by' instead. For example: The upcoming conference will be hosted by the local university.
Host mobility is enabled by maintaining topological information for each registered host by the NRS.
Lara knew the host by sight.
THE HOST By Stephenie Meyer 619 pages.
Head lice pass from host to host by direct contact.
Someone has clearly trolled the host by telling him that he looks good against neon blue.
Like one out of three recent Presidents, she is an actor and television host by trade.
Wogan was succeeded as host by Les Dawson and, later, Paul O'Grady.
(Alas, Castro was recording Fox's phone call and proceeded to shame his Mexican host by releasing the audio publicly).
In 1990, Nora Dunn protested the shock-comic Andrew Dice Clay's turn as host by walking off the show.
He has already been offered a job as a talk show host by a Manhattan cable access channel.
Mr. Greenblatt had irritated the host by questioning why he was making barbed jokes about the network's ratings.
