39B

39B is a designation that appears in many fields, typically as a suffix or variant marker attached to the base number 39. Because 39 is a common numeral in organizational systems, 39B has no single universal meaning; its interpretation depends entirely on context and domain.

In transportation, 39B is often used to denote a branch or variant of a route. For example, a transit authority might label a specific bus or rail service as 39B to distinguish it from the main 39 route, with the letter indicating a looping, alternate, or secondary service pattern.

In manufacturing and consumer electronics, 39B commonly serves as a model number or part identifier. A device or component may be produced in several variants (such as 39A, 39B, 39C), with 39B specifying a particular configuration, revision, or feature set as defined by the manufacturer.

In geographic and administrative contexts, 39B can designate a subdivision, grid, or district within a larger region that is organized numerically. It may appear on maps, property records, or zoning documents where a main area labeled with 39 is further divided.

In publishing, cataloging, or archival systems, 39B may appear as an issue number, volume subsection, or call-number component, helping to organize items within a series or collection.

Because 39B spans multiple sectors, identifying its precise meaning requires context. When unsure, consult the relevant source category—transit schedules, product catalogs, geographic or property records, or library classifications—to determine how 39B is defined in that specific case.