Address Point (NG911) [Maryland--Baltimore]
Baltimore City · 2025 Full Details
Tip: Check “Visit Source” link for download options.
| Attribute | Value |
|---|---|
| Click on map to inspect values | |
Full Details
- Title
- Address Point (NG911) [Maryland--Baltimore]
- Description
- A spatial data layer containing point geometry features for representing both the physical and mailing addresses for properties, buildings, and sub-address locations in Baltimore City, as documented in the City's real property and property location database sources. The data employs what's referred to as the Next Generation 9-1-1 (NG911) schema/data standard, which has specific attribute field names, field formats, and data standards to support the standardization required by a future public safety NG911 system, as set forth by the National Emergency Number Association (NENA). The data contained in this data layer (number of features, accuracy, point locations) will match the data in the other address point data layer on Open Baltimore ("Address Point (Native)"), just the format of the attribute field names and data standards will be different. This data also employs the WGS 1984 projected coordinate system (WKID: 4326). Data is updated on a quarterly basis. Data Dictionary: field_name description data_type range_of_possible_values example_values searchable 1 OBJECTID The database's internal unique identifier for the data table record. Number 0 - 999999999 91715 No 2 DiscrpAgID Agency that receives a Discrepancy Report (DR), should a discrepancy be discovered, and will take responsibility for ensuring discrepancy resolution. This may or may not be the same as the 9-1-1 Authority. This MUST be represented by a domain name that is an Agency Identifier as defined in the NENA Master Glossary [1]. Free Text Entry % (any ID, per NG911 standard) pgcpsc.pgc.md.us.msi911.net (example from PG County, MD) Yes 3 DateUpdate The date and time that the record was created or last modified. This value MUST be populated upon modifications to attributes, geometry, or both. Date 1/1/1990 00:00:00 - 12/31/2100 00:00:00. 8/31/2021 10:04 Yes 4 effective The date and time that the record is scheduled to take effect in a NG911 system. Date 1/1/1990 00:00:00 - 12/31/2100 00:00:00. 8/31/2021 10:04 Yes 5 expire The date and time when the information in the record is no longer considered valid in a NG911 system. Date 1/1/1990 00:00:00 - 12/31/2100 00:00:00. 8/31/2021 10:04 Yes 6 Site_NGUID The NENA Globally Unique ID for each address point feature. Each record in this layer MUST have a globally unique ID and it must be unique across all NG911 datasets. Free Text Entry % (any name, per NG911 standard) SSAP435LionsSt23531@pgcpsc.pgc.md.us.msi911.net (example from PG County, MD) Yes 7 Country The name of a country represented by its two-letter ISO 3166-1 English country alpha-2 code elements in capital ASCII letters (all records will have the value "US"). Category United States (US) United States, US Yes 8 State The 2-letter abbreviation for the federal state area that contains the address point (all records will have the value Maryland). Category Maryland (MD) Maryland, MD Yes 9 County The administrative county area that contains the address point (all records will have the value Baltimore City). Category Baltimore City Baltimore City Yes 10 AddCode A code that specifies a geographic area. Used in Canada to hold a Standard Geographical Classification code; it differentiates two municipalities with the same name in a province that does not have counties. Category % (any code), <Null> <Null> Yes 11 Inc_Muni The name of the Incorporated Municipality or other general-purpose local governmental unit (if any) where the address is located. However, use "Unincorporated" if the address is not within an incorporated local government (all records will have the value "Baltimore"). Category Baltimore Baltimore Yes 12 Uninc_Comm The name of an Unincorporated Community, either within an incorporated municipality or in an unincorporated portion of a county, or both, where the address is located. Free Text Entry <Null> <Null> Yes 13 Nbrhd_Comm The name of an unincorporated neighborhood, subdivision, or area, either within an incorporated municipality or in an unincorporated portion of a county or both, where the address is located.The name of the subdivision this address participates in. Free Text Entry % (any name), <Null> <Null> Yes 14 AddNum_Pre An extension of the Address Number that precedes it and further identifies a location along a thoroughfare or within a defined area. Free Text Entry % (any prefix), <Null> "75-" in "75-6214 Kailua Place"; "3W2N-" in "3W2N-4551", <Null> Yes 15 Add_Number The numeric identifier of a location along a thoroughfare or within a defined community .Alpha-numeric field containing the structure number or value for the site address civic location assigned by the local addressing authority. Usually an integer which defines the individual address number for the structure. As this is the primary structure value, alphabetic characters should only appear in this field if they are part of the house number, not a secondary address (like an apartment, suite or unit). Duplex structures with no primary address can be populated in this field (i.e., ‘101A' and ‘101B'). Number 1 -- 9999 401, 3232, "1600" in " 1600 Pennsylvania Avenue" Yes 16 AddNum_Suf An extension of the Address number that follows it and further identifies a location along a thoroughfare or within a defined area. Free Text Entry 1/2-9999, A - Z, <Null> 1/2, A, "B" in "223 B Jay Avenue" or "1/2" in 119 1/2 Elm Street" Yes 17 St_PreMod A word or phrase that precedes and modifies the Street Name element but is separated from it by a Street Name Pre Type or a Street Name Pre Directional or both. Free Text Entry % (any name), <Null> <Null> Yes 18 St_PreDir A word preceding the Street Name element that indicates the direction taken by the road from an arbitrary starting point or line, or the sector where it is located. Category North, South, East, West, Northeast, Northwest, Southeast, Southwest, <Null> North, East Yes 19 St_PreTyp A word or phrase that precedes the Street Name element and identifies a type of thoroughfare in a complete street name. Category NENA defined list, <Null> Access Road, Causeway, <Null> Yes 20 St_PreSep A preposition or prepositional phrase between the Street Name Pre Type and the Street Name. This element is defined in CLDXF (NENA-STA-004) [3] as a US specific extension of PIDF-LO per RFC 6848 [6]. Category NENA defined list, <Null> at, de, de la, in the, of the, <Null> Yes 21 St_Name The official name of the road, usually defined by the lowest jurisdictional authority (e.g., Baltimore City). The street name does not include any street types, directionals, or modifiers. For "Alley" street type centerline segments, an alley naming routine was employed in the legacy database to populate the street name field based on the names of the parallel streets, with the western or northern street listed first (e.g., HICKORY-ROLAND). Alleys that did not have a second parallel street (i.e., alleys that back up to woods, train tracks, etc.) were named with the parallel street name and post type followed by "Rear" (e.g. TUSCANY CT REAR) to prevent potential name duplication. If there were multiple alleys in a single block, they were named as above, then numbered from west to east or north to south (e.g., CHESTNUT-KESWICK 1, CHESTNUT-KESWICK 2). Free Text Entry % (any name) FAYETTE, EASTERN, HICKORY-ROLAND Yes 22 St_PosTyp A word or phrase that follows the Street Name element and identifies a type of thoroughfare in a complete street name. Category NENA defined list, <Null> Avenue, Street, Terrace, Garth Yes 23 St_PosDir A word following the Street Name element that indicates the direction taken by the road from an arbitrary starting point or line, or the sector where it is located. Category North, South, East, West, Northeast, Northwest, Southeast, Southwest, <Null> North, East Yes 24 St_PosMod A word or phrase that follows and modifies the Street Name element, but is separated from it by a Street Name Post Type or a Street Name Post Directional or both. Free Text Entry % (any name), <Null> <Null> Yes 25 LSt_PreDir The leading street direction prefix as it previously existed prior to the adoption of the NG9-1-1 Data Model as assigned by the local addressing authority. Category N, S, E, W, NE, NW, SE, SW, <Null> N, E, "S" in " S PINE AVE" Yes 26 LSt_Name The street name field as it would appear in the MSAG and legacy database, as assigned by the local addressing authority. For "Alley" street type centerline segments, an alley naming routine was employed in the legacy database to populate the street name field based on the names of the parallel streets, with the western or northern street listed first (e.g., HICKORY-ROLAND). Alleys that did not have a second parallel street (i.e., alleys that back up to woods, train tracks, etc.) were named with the parallel street name and post type followed by "Rear" (e.g. TUSCANY CT REAR) to prevent potential name duplication. If there were multiple alleys in a single block, they were named as above, then numbered from west to east or north to south (e.g., CHESTNUT-KESWICK 1, CHESTNUT-KESWICK 2). Free Text Entry % (any name) FAYETTE, EASTERN, HICKORY-ROLAND Yes 27 LSt_Type The valid street abbreviation as it previously existed prior to the adoption of the NG9-1-1 Data Model as assigned by the local addressing authority. Category AL, AVE, BLVD, CIR, CRES, CT, DR, GLN, GRTH, HWY, LN, LNDG, MALL, MEWS, PASS, PATH, PIKE, PKWY, PL, PLZ, PLZA, PT, RD, RUN, SQ, ST, TER, TERR, WALK, WAY, <Null> AVE, ST, TER, GRTH Yes 28 LSt_PosDir The trailing street direction suffix as it previously existed prior to the adoption of the NG9-1-1 Data Model as assigned by the local addressing authority. Category N, S, E, W, NE, NW, SE, SW, <Null> N, E, "E" in "KEY HWY E " Yes 29 ESN The Emergency Service Number is actually a 5-digit string, of which this schema is only capturing the last 3. The 3-digit code is prefixed with leading zeros. The ESN is a legacy element used for 10-digt routing. The ESN is also contained within the City MSAG database. Free Text Entry Legacy range of values: 2500 - 2694, 3809 (00500 - 00694 w/ prefixed zeros), <Null> Legacy value: 2502 (or "00502" w/ 2 prefixed zeros), <Null> Yes 30 MSAGComm This is not the administrative or postal city designation. This field should contain the MSAG Community Name, assigned by the 9-1-1 authority, which the address point is contained within. Free Text Entry % (any name), <Null> <Null> Yes 31 Post_Comm A city name for the ZIP Code of an address, as given in the USPS City State Product. Free Text Entry % (any name), <Null> Baltimore, <Null> Yes 32 Post_Code A system of 5-digit (US) or 7-character codes (Canada) that identify the individual USPS or Canadian Post Office or metropolitan area delivery station associated with an address. Category 21201 - 21287 21202 Yes 33 Post_Code4 The 4-digit suffix appended to the ZIP Code assigned to the address, per USPS. Free Text Entry 0000 - 9999 3426 Yes 34 Building One among a group of buildings that have the same address number and complete street name. Free Text Entry % (any name), <Null> Holmes Hall (Morgan State University), Building A Yes 35 Floor The floor of the building specific to this site address point. Free Text Entry % (any name), <Null> FLR 3, Floor 5, 5th Floor, Mezzanine Yes 36 Unit_Type The type of group or suite of rooms within a building that are under common ownership or tenancy, typically having a common primary entrance. Free Text Entry Apartment, Basement, Floor, Slip, Unit, Suite, <Null> Apartment, Basement, Floor, Slip, Unit, Suite Yes 37 Unit A group or suite of rooms within a building that are under common ownership or tenancy, typically having a common primary entrance. Free Text Entry 1 - 999999, A - Z, 1A - 999999Z, A1, Z999999, APT, UNIT, REAR, PH, OFC, North Tower, LOWR, LE, FRNT, FLOOR, FL, FLR, BSMT, UPPR, SLIP, SIDE, RM, Suite, <Null> APT A, SLIP 7, RM S10B02, FL-3, BSMT A, 507, Apartment C2, Penthouse, Suite 710 Yes 38 Room A single room within a building. Free Text Entry % (any name), <Null> RM 3, 10, Room 137, Lobby Yes 39 Seat A place where a person might sit within a building. Free Text Entry % (any name), <Null> Cubicle 5A; 5A; Desk 11; 11 Yes 40 Addtl_Loc A part of a sub-address that is not a Building, Floor, Unit, Room, or Seat. Free Text Entry % (any name), <Null> <Null> Yes 41 LandmkName The name by which a prominent site/structure is publicly known. Landmarks may or may not be associated with a civic address. Free Text Entry % (any name), <Null> M&T Bank Stadium, Digital Harbor High School, Johns Hopkins Hospital Yes 42 Mile_Post A distance travelled along a route such as a road or highway, typically indicated by a milepost sign. There is typically a post or other marker indicating the distance in miles/kilometers from or to a given point. Free Text Entry % (any name), <Null> Milepost 13; Mile Marker 327.5, Station 101 North Yes 43 Place_Type The type of feature identified by the address. Category NENA defined list, <Null> Airport; bank; café; club; office; hotel. Vacant Lot was added to Maryland's schema. Yes 44 Placement The methodology used for placement of the address point Domain: Geocoding, Parcel, Property Access, Structure, Site, Unknown are defined and can be extended as documented in the "Placement Method" NENA Registry in Section 5.1 Free Text Entry % (any method name), <Null> Parcel (if the location of the address point was determined based on parcel centroid) Yes 45 Long The x-coordinate (or longitude, in decimal degrees) of the address point. Number Range of longtitudes for Baltimore City: -76.524138 - -76.714266 -76.610025 Yes 46 Lat The y-coordinate (or latitude, in decimal degrees) of the address point. Number Range of latitudes for Baltimore City: 39.197233 - 39.374040 39.290368 Yes 47 Elev The elevation, given in meters above a reference surface defined by the coordinate system, associated with the site/structure address. Number % (any elevation existing in Baltimore City), <Null> 0, 0.5, 5 Yes 48 PSAP_ID The identification name of the PSAP the address point is contained within. Free Text Entry % (any ID), <Null> <Null> Yes 49 AddDataURI URI(s) for additional data associated with the site/structure address point. This attribute is contained in the Site/Structure Address Points layer and will define the Service URI of additional information about a location, including building information (blueprints, contact info, floor plans, etc.). Free Text Entry % (any name), <Null> <Null> Yes 50 data_source The name/label of the source of the address data. Free Text Entry % (any source name), <Null> <Null> Yes 55 external_nguid The current unique identifier (primary key) for the address point feature. Free Text Entry 1 - 999999999 182582 Yes 56 fullrdname The full name of the street, a concatenation of the street name pre-modifier (if exists, St_PreMod field), the street name pre-directional (St_PreDir), the street name pre-type (if exists, St_PreTyp), the street name pre-type separator (if exists, St_PreSep), the street name (St_Name), street name post type (St_PosTyp), the street name post directional (if exists, St_PosDir), and street post modifier (if exists, St_PosMod) fields. Free Text Entry % (any street name in City) EAST FAYETTE STREET Yes 57 feature_status The status of the address point feature, indicating whether the address is an existing "Active" address, "Retired" due to the something related to removal of a building or alteration to a property, or "Proposed" future address pending a development. Category Active, Proposed, Retired, <Null> Active Yes 58 globalid The global unique identifier for the address point feature. Number {%%%%%%%%-%%%%-%%%%-%%%%-%%%%%%%%%%%%} (any 36 character alphanumeric value) {2AD26FD6-0F03-4C29-848F-FC8203E551C2} No 59 Shape The geometry designation of the address point feature, for GIS purposes. Category Point Point No To leave feedback or ask a question about this dataset, please fill out the following form: Address Point (NG911) feedback form.
- Creator
- Baltimore City
- Temporal Coverage
- Last Modified: 2025-06-22
- Date Issued
- 2023-12-20
- Access Rights
- Public
- Format
- ArcGIS FeatureLayer
- Language
- English
- Date Added
- August 10, 2025
- Provenance Statement
- The metadata for this resource was last retrieved from Open Baltimore on 2025-08-24.
Cite and Reference
-
Citation
Baltimore City (2023). Address Point (NG911) [Maryland--Baltimore]. . https://data.baltimorecity.gov/datasets/baltimore::address-point-ng911 (web service) -
BTAA Geoportal Link
