Telephone numbers beginning with 016864 belong to the Llanidloes charge group.
The following numbers are local calls
to and from this charge group:
01597
01650
01654
016866
016868
01938
01970
01974
The following numbers are regional calls
to and from this charge group:
01341
01497
01544
01547
01550
01570
01588
01591
01678
01691
01694
01982
All other calls are national calls.
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