In the distant past their was an issue with Socrata and NYC Open data that caused the 4x4 urls to change. This was resolved.
It's possible that the links in this repository were documented prior to that resolution. It's possible that something else is going on. Consider finding out the cause as part of the resolution of this issue.
Some are broken. See for example zip codes:
https://github.com/CityOfNewYork/nyc-geo-metadata/blob/main/Metadata/Metadata_ZipCodeBoundaries.md
linking to:
https://data.cityofnewyork.us/Business/Zip-Code-Boundaries/i8iw-xf4u
In the distant past their was an issue with Socrata and NYC Open data that caused the 4x4 urls to change. This was resolved.
It's possible that the links in this repository were documented prior to that resolution. It's possible that something else is going on. Consider finding out the cause as part of the resolution of this issue.