United Overseas Bank (UOB) in Singapore does not use a routing number (a US/Canadian system). For international wire transfers, use the SWIFT/BIC code:
UOVBSGSG (UOB Singapore, Raffles Place Head Office)
For domestic SGD transfers within Singapore, use FAST (instant) or MEPS/GIRO with the bank code 7375 and branch code 001 (Raffles Place). Always confirm with the recipient or bank before sending.