Address 2 unit type
Indicates the type for a secondary address unit, such as Apartment or Suite. Known or imputed for 119.3 million addresses — 99.6% of the addresses Faraday knows.
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At a glance
- Coverage today
- 99.6%
- Typical coverage
- 99.4%
- Addresses with a value
- 119.3M
- Share in largest category
- 82.0%
- Most values come
- from the address
- Latest collection
- Jun 1, 2026
How the categories split
n = 119,310,614Share of addresses in each category. 23 categories, of which the 20 largest are shown, with 82.0% in the largest.
Every category
23 categoriesThe chart above draws the 20 largest. Search here for one it does not.
- 1 - No Prefix82.0%97,780,309 addresses
- 0 - Other18.0%21,485,958 addresses
- 9 - Rear0.0071%8,427 addresses
- 27 - Office0.0049%5,814 addresses
- 12 - Upper0.0048%5,708 addresses
- 24 - Apartment0.0047%5,646 addresses
- 11 - Front0.0047%5,568 addresses
- 8 - Lower0.0039%4,697 addresses
- 6 - Basement0.0029%3,502 addresses
- 10 - Side0.00083%988 addresses
- 30 - Penthouse0.00071%842 addresses
- 18 - Unit A0.00064%768 addresses
- 17 - Unit B0.00055%659 addresses
- 23 - Unit0.00051%612 addresses
- 29 - Suite0.00020%236 addresses
- 4 - Lot0.00019%228 addresses
- 2 - Trailer0.00019%228 addresses
- 26 - Lobby0.00014%172 addresses
- 16 - Unit C0.000070%84 addresses
- 3 - Space0.000070%83 addresses
- 15 - Private Mailbox0.000057%68 addresses
- 28 - Floor0.000010%12 addresses
- 21 - Room0.0000042%5 addresses
Category shares over time
1 - No Prefix81.8% (largest)The 5 largest categories, each followed across 12 collections. Estimated from a 1% sample of addresses.
Coverage
Latest collection: 119,378,791 addressesCoverage by state
Percentage of addresses in each state with a value.
Coverage over time
99.6% todayShare of addresses holding a value at each monthly snapshot. A value carries forward for one year.
How we arrive at a value
Whether a value was observed on the person themselves, carried from their address, or estimated from the people around them.
- On the person — 0%
- Not used for this attribute — no value is inherited this way.
- From address — 100%
- Carried from what we know about the household at their address.
- From geography — 0%
- Not used for this attribute — no value is inherited this way.
Coverage, in context
Where 99.6% sits on the catalog’s own coverage range.
Higher coverage than 92% of address-level attributes in the catalog
Freshness
How recently this was collected, and how often a new collection arrives. Each bar is the number of addresses in that collection. Gaps are real — collection is periodic, not continuous.
Change between collections
The share of addresses whose category changed.
of addresses changed value between the two most recent collections — 918.8× steadier than the catalog median of 16.0%.
Contribution ledger
14 ingestions1 authority contributed since Jul 2023.
| Observed | Ingested | Count | ID |
|---|---|---|---|
| 263,433,649 | 74d6c94c-8e2b-48fe-a704-50c99ad3cdde | ||
| 266,506,942 | c5492806-a892-460e-aba1-ee78ffb29c5b | ||
| 264,096,977 | 1181277b-b751-4a59-aae1-101fa3f55375 | ||
| 264,777,400 | af53c569-4fe2-4282-975b-4cbf5f85692d | ||
| 268,508,091 | 84d6a1c5-d142-4a4d-9cb3-902de4c82c30 | ||
Related attributes
Attributes whose descriptions are closest to this one.
Neighbors found Oct 2026.
Use it in the API
Send an email, phone, or address. Get Address 2 unit type back in real time.
- Add
address_2_unit_designationto a project. - Send an email, phone, or address to the project's append endpoint. The response carries Address 2 unit type for the matched person.
curl -X POST 'https://api.pro.faraday.ai/v1/projects/YOUR_PROJECT_ID/append' \
-H 'Authorization: Bearer YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"email": "jane.doe@example.com"
}'→ {"attributes":{"address_2_unit_designation":"1 - No Prefix"}}Technical details
- API name
- address_2_unit_designation
- Category
- fig/property
- Type · unit
- Text
- Statistical type
- nominal
- Allowed values
- null
- Derivations
- Unspecified
- How values combine
- Read from a single source field.
- Directionality
- null
- Deprecation
- false