Telephone numbers beginning with 01674 belong to the Montrose charge group.
The following numbers are local calls
to and from this charge group:
01241
01307
01356
01561
The following numbers are regional calls
to and from this charge group:
01224
01250
01330
01333
01334
013398
01382
01569
01575
01821
01826
01828
All other calls are national calls.
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