Definition of routing code in English:

routing code

(also routing number)

noun

US
  • 1Any of various numbers used to direct data, documents, or merchandise, including.

    • ‘All the other logins had a routing code, corresponding to the network console they had used inside the building.’
    1. 1.1The magnetically encoded numbers on a check.
      • ‘On file, open to the public, is his driver's license, Social Security card and a cancelled check, with the routing code for drawing money out of his bank account.’
    2. 1.2A numeric code that directs telephone calls or Internet traffic.
      • ‘Now that we have identified where MFC entries are added, modified and deleted, we can start hooking the multicast routing code.’