Telephone numbers beginning with 01529 belong to the Sleaford charge group.
The following numbers are local calls
to and from this charge group:
01205
01400
01476
01526
01775
01778
The following numbers are regional calls
to and from this charge group:
0115
01406
01427
015072
015073
015074
015075
015076
015077
01522
01572
01623
01636
01664
01673
01731
01733
01754
01777
01780
01790
01945
01949
All other calls are national calls.
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