Telephone numbers beginning with 01845 belong to the Thirsk charge group.
The following numbers are local calls
to and from this charge group:
01347
014232
014233
01439
01609
01677
01765
The following numbers are regional calls
to and from this charge group:
0113
01274
01287
01325
013884
013886
013887
013888
014235
014236
014237
014238
01429
01535
01642
01653
01740
01748
01751
01756
01757
01759
01833
01904
01937
01943
01944
01947
01969
All other calls are national calls.
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