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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 10:52 PM
3,026 datasets, 56,681 catalogued fields, 0 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.
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← What we have understood · Dataset page
Every field decided — Every field carries a verdict — which does not mean every field is understood.
Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.
| Field | Type | What we know | Meaning | How it was decided | Shared term |
|---|---|---|---|---|---|
| c2 C2 | Number | Not enough to tell | — | value_domain_read | — |
| longitude Longitude | Number | Understood | geometry.longitude Longitude | value_profilesmallest=-74.013748 largest=-73.904721 | — |
| census_tract Census Tract | Number | Checked, no match | — | value_domain_read | — |
| premiseaddressnumber PremiseAddressNumber | Text | Checked, no match | — | value_domain_readsmallest=00264-266 largest=World's Fair top[8 of 20]={15×199; 20×184; 25×176; 30×169; 10×162; 40×161; 17×152; 16×136} | — |
| latitude Latitude | Number | Understood | geometry.latitude Latitude | value_domain_readsmallest=40.499093 largest=40.912149 | — |
| lot Lot | Text | Checked, no match | — | value_domain_readsmallest=00001 largest=T1187 top[8 of 20]={NONE×441; 8366×323; 16350×210; 02400×129; 02930×120; 01987×94; 00836×87; 07320×84} | — |
| council_district Council District | Number | Understood | place.council_district City Council District | value_domain_read | council_district |
| bin BIN | Number | Understood | place.bin Building Identification Number | operator_cohort matched by name, unread | bin |
| bbl BBL | Number | Checked, no match | — | value_domain_read | — |
| c3 C3 | Text | Not enough to tell | — | value_domain_read | — |
| premiseaddressstreet PremiseAddressStreet | Text | Checked, no match | — | value_domain_readsmallest=.` largest=Zulette Ave top[8 of 20]={Broadway×1131; 5th Ave×470; Northern Blvd×426; 3rd Ave×381; Queens Blvd×310; Hylan Blvd×271; Atlantic Ave×270; Park Ave×254} | — |
| nta NTA | Text | Checked, no match | — | value_domain_read | — |
| block Block | Text | Checked, no match | — | value_domain_readsmallest=00001 largest=T1187 top[8 of 20]={NONE×441; 8366×323; 16350×210; 02400×129; 02930×120; 01987×94; 00836×87; 07320×84} | — |
| c1 C1 | Number | Not enough to tell | — | value_domain_read | — |
| calendarnumber CalendarNumber | Text | Checked, no match | — | value_profilecard=61004 nonnull=62305 null=1 smallest=0 largest=999-88-A | — |
| borough Borough | Text | Checked, no match | — | value_domain_read | — |
| postcode Postcode | Number | Checked, no match | — | value_domain_read | — |
| community_board Community Board | Number | Understood | place.community_district Community District / Board | value_domain_read | community_district |