Telephone numbers beginning with 01439 belong to the Helmsley charge group.
The following numbers are local calls
to and from this charge group:
01347
01609
01642
01653
01751
01845
The following numbers are regional calls
to and from this charge group:
01287
01325
01377
014232
014233
014235
014236
014237
014238
01429
014308
01677
01723
01740
01748
01757
01759
01765
01904
01937
01944
01947
01969
All other calls are national calls.
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