Amazon.com has recently released a publicly accessible copy of the dataset used during the 2021 Last Mile Routing Research Challenge.
This dataset is further described in a short technical article published in Transportation Science.
The technical article can also be used to cite the dataset in any academic publication that wishes to reference the data:
Daniel Merchán, Jatin Arora, Julian Pachon, Karthik Konduri, Matthias Winkenbach, Steven Parks, Joseph Noszek (2022). 2021 Amazon Last Mile Routing Research Challenge: Data Set. Transportation Science 0(0). https://doi.org/10.1287/trsc.2022.1173