I asked my host and I got this as answer:
The IPs are not blocked in the server. If you suspect some of the requests are still reaching your old host, I have to say it might be the DNS related to the ISPs related. The DNS has changed on 31st January and the propagation won't take more than 48 hours to finish. So this can be ruled out as well.
In the logs you've provided, I see some Google Search results of your website and its pointing to the the Hawkhost server on my end. So its not a Cache on Google, I guess. There is nothing much we can do in this. Hope this is clear for you.