Number Represents the Letters
1.......B, F, P, V
2.......C, G, J, K, Q, S, X, Z
The letters A, E, I, O, U, H, W, And Y are ignored
Example: London would be encoded like this
L-535, L, 5 for the N, 3 for the D and 5 for the N The letter O being disregarded.
Some more rules
If the Surname has double letters then they are treated as one letter
also, if the Surname has different letters side by side that have the same
Soundex code then they are treated as one letter.
Names with prefixes: If a Surname has a prefix such as Van,
Con, De, Di, La or Le then code the Surname both with and without
the prefix because the surname may be listed under either code.
Please note that Mc and Mac are not considered as prefixes.
If a vowel separates two consonants that have the same Soundex code,
the consonant to the right of the vowel is coded.