Certain numbers seem to be subject to transposition. About 10 years ago my home number was 441761. A take-out restaurant in town had the number 441671, and it wasn't unusual to field calls for them of an evening.
Back in the early 1960s my mother ran a small diner in London with a friend. Their number was LABurnham 1122, and apparently they often received calls destined for LADbroke 1122, which at the time belonged to a rather large business.
