Telephone numbers beginning with 01665 belong to the Alnwick charge group.
The following numbers are local calls
to and from this charge group:
01668
01669
01670
The following numbers are regional calls
to and from this charge group:
01289
014342
014346
01573
01661
01830
018902
018903
018907
018908
0191 (numbers beginning 2, 4, or 6)
All other calls are national calls.
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