The NYC Department of Transportation maintains parking meters and zones. Parking experts often call modern parking meters "towers" instead of "meters" because they look more like black obelisks than old-fashioned lollipop-like meters.

Meters have fixed meter numbers and are located on a block with a particular rate and time. Some blocks have more than one meter. Similar to meter numbers, blocks have "pay by cell" numbers.

Blocks are defined using block faces (a low level geography) with a line on each side of the street. So parking meter maps often show streets with each curb line highlighted with a line.

NYC Open Data - Parking Meters

Not all meters are active.

https://data.cityofnewyork.us/Transportation/Parking-Meters-GPS-Coordinates-and-Status/5jsj-cq4s

NYC Open Data - Parking Meter Block Faces

https://data.cityofnewyork.us/Transportation/Parking-Meters-ParkNYC-Blockfaces/s7zi-dgdx

NYC Open Data - Parking Meter Zones

https://data.cityofnewyork.us/Transportation/Parking-Meters-Citywide-Rate-Zones/da76-p95d

NYC Department of Transportation - Parking Meter Web Feature Service

https://services.arcgis.com/wmZOI9vyUBq1zTZx/arcgis/rest/services/Parking_Meters/FeatureServer