TN registration family
Tamil Nadu RTO codes
Browse the TN registration ladder for Tamil Nadu, including office counts, sample code blocks, and state-specific notes that help explain how the number plate family is structured.
Prefix
TN
Code blocks
113
First series
TN-01
A state-specific preview using the TN registration family.
Long sequence
Tamil Nadu uses a long TN number sequence, with Chennai and the major regional offices occupying many early blocks in the ladder.
Read the full Tamil Nadu rule pageSample codes in Tamil Nadu
These sample entries help users understand how the TN registration family begins before they move into the full lookup.
How to use this state page
Start with the state prefix and sample code list to understand how the registration family is structured. Then move to the exact code page if you already know the office number, or use the related guides if the question is about format, HSRP, or a state-specific rule change.
The yellow note on this page highlights the detail most likely to confuse users in that state, such as a legacy mark, a renamed prefix, or an office structure that does not map neatly to district boundaries.