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Opening numbers?
Answer for the clue "Opening numbers? ", 9 letters:
areacodes
Alternative clues for the word areacodes
- Numerical prefixes
- Regional IDs
- They're often found in parentheses
- Alaska, Delaware, Hawaii, Idaho, Maine, Montana, New Hampshire, North Dakota, Rhode Island, South Dakota, Vermont, and Wyoming each have just one of them
- Three-digit phone number starters
- New York City has six
- Three-digit prefixes
- Some of the cell numbers American does care about
- Phone number parts
- Trios starting numbers