Li for Liberty

I had this question come in through my contact form, and I am curious about it myself:

Just had a question, from the past.  I lived in Bremen when I was a kid (a long time ago)…  Our phone number started with LI6-nnnn   LI for Libery.  Phone numbers are still 546-nnnn  . Do you know why LI or Liberty?    Thanks!

If any readers know the answer please comment below!

Thanks.

Randy.

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