Telephone numbers beginning with 01780 belong to the Stamford charge group.
The following numbers are local calls
to and from this charge group:
01476
01536
01572
01731
01733
01778
01832
The following numbers are regional calls
to and from this charge group:
0115
0116
01205
01354
01400
01406
01480
01487
01509
01526
01529
01604
01636
01664
01775
01858
01933
01945
01949
All other calls are national calls.
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