More Amazon stuff, This isn't new, but I thought ist might help to show how it is divided. Some of this is showing up with most of my unwanted traffic:

The full range is 35.71.64.0 - 35.127.255.255 which covers the following:
35.71.64.0/18
35.71.64.0 - 35.71.127.255

35.71.128.0/17
35.71.128.0 - 35.71.255.255

35.72.0.0/13
35.72.0.0 - 35.79.255.255

35.80.0.0/12
35.80.0.0 - 35.95.255.255

35.96.0.0/11
35.96.0.0 - 35.127.255.255

The most troublesome part for me is 35.80.0.0/12
35.80.0.0 - 35.95.255.255

The list of some 6,223 Amazon IPv4 CIDRs
here [ip-ranges.amazonaws.com ]
Also the IPv6 list there, too.

Most of those are listed around here over the years, though searching doesn't help at all any more.

Never heard of Digital Landscape before, looks like a nearby range to some old /20 ranges from Ramnode and Crissic IPs:
Digital Landscape (scrapers)
23.226.16.0 - 23.226.31.255
23.226.16.0/20

BTW- UA: "python-requests/2.25.1", probably what got them a 403.

Looks like Hyonix LLC(which has many more ranges, most listed as /24s in US, Singapore.... )

Slow Scraper( on 130.51.41.OneSixOne )

130.51.40.0 - 130.51.43.255
130.51.40.0/22
AS213122

TY! I did not ever need to notice that range.