Log code number ranges are associated with certain types of messages.
- Codes below 10,000 are logged by the core framework of ArcGIS Server.
 - Codes between 10,000 and 100,000 pertain to services.
 - Codes above 100,000 are core ArcObjects component-related messages that may also be used in ArcGIS Engine or ArcGIS Desktop.
 
Some codes apply to messages of different levels, for example, a message with a code may be a severe error for one event, while it may be a warning for another event.
The following table shows a more detailed breakdown of the code ranges and their content:
| Log code range | Message content | 
|---|---|
0-9999  | Core ArcGIS Server framework  | 
10000–10999  | Map services  | 
11000–11999  | Mobile data services (deprecated at 10.5)  | 
12000–12999  | KML services  | 
13000–13999  | Network Analysis services  | 
14000–14999  | WFS services created from map services  | 
15000–15999  | WCS services created from map services  | 
16000–16999  | WMS services created from map services  | 
17000–19999  | Feature services  | 
20000–20999  | Geoprocessing services  | 
21000–21999  | Synchronous geoprocessing services  | 
30000–30999  | Globe services (Deprecated at 10.5)  | 
60000–60999  | Geometry services  | 
70000–70999  | Geocode services  | 
80000–80999  | Image services  | 
81000–81999  | WCS services created from image services  | 
82000–82999  | WMS services created from image services  | 
90000–90999  | Geodata services  | 
91000–91999  | WCS services created from geodata services  | 
92000–92999  | WFS services created from geodata services  | 
100000–100999  | System  | 
101000–101999  | Geometry  | 
102000–102999  | Geodatabase  | 
103000–103999  | Carto  | 
104000–104999  | Display  | 
105000–105999  | Output  | 
106000–106999  | Geoprocessing  | 
107000–107999  | Globe  | 
108000–108999  | 3D  | 
109000–109999  | Network Analyst  | 
110000–110999  | ArcGIS Data Store  | 
111000–111999  | Insights for ArcGIS server component  |