Reduce the list. Postcodes starting with:

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Postcodes (63 items):
PA1151 (1)
PA1351 (2)
PA1551 (1)
PA1751 (1)
PA1951 (1)
PA2151 (1)
PA2351 (1)
PA2551 (1)
PA2751 (1)
PA2951 (1)
PA3151 (1)
PA3351 (1)
PA3551 (1)
PA3751 (1)
PA3951 (1)
PB1151 (1)
PB1351 (1)
PB1551 (1)
PB1751 (1)
PB1951 (1)
PC1151 (1)
PC1351 (1)
PC1551 (1)
PC1751 (1)
PC1951 (1)
PC2151 (1)
PC2351 (1)
PC2551 (1)
PC2751 (1)
PC2951 (1)
PC3151 (1)
PC3351 (1)
PC3551 (1)
PD1151 (1)
PD1351 (1)
PD1551 (1)
PD1751 (1)
PD1951 (1)
PD2151 (1)
PD2351 (1)
PD2551 (1)
PD2751 (1)
PD2951 (1)
PD3151 (1)
PD3351 (1)
PD3551 (1)
PE1151 (1)
PE1351 (1)
PE1551 (1)
PE1751 (1)
PE1951 (1)
PE2151 (1)
PE2351 (1)
PE2551 (1)
PE2751 (1)
PE2951 (1)
PE3151 (1)
PE3351 (1)
PE3551 (1)
PE3751 (1)
PE3951 (1)
PE4151 (1)
PE4351 (1)