ZIP codes starting with cover the southeastern portion of Connecticut, primarily in New London County . 06320: New London 06340: Groton 06360: Norwich 06382: Uncasville (home to Mohegan Sun) 🔢 Understanding the 063029 Sequence

If the number was provided to you as a single string, it is likely one of the following:

Situated in Tolland County, northeast of Hartford.

While U.S. codes are five digits, countries like Uzbekistan use six-digit postal codes (e.g., Tashkent codes start with 100).