Anomalously numbered roads in Great Britain

In the Great Britain road numbering scheme, Great Britain is divided into numbered zones, the boundaries of which are usually defined by single-digit roads. The first digit of a road's number should be the number of the zone it occupies. If the road occupies multiple zones, then the furthest-anticlockwise zone is the correct one.

The following table lists all British roads which are anomalously numbered. Roads in bold lie completely outside of the "correct" zone; all other roads run for some length in the "correct" zones but trespass into zones anticlockwise of this zone.


Irregularities not based on the zoning system


* [ Out-of-Zone Roads] (from which most of the information on this page is taken)
* [ SABRE's road lists] . A comprehensive database of numbered roads in mainland Britain.

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