Numbering schemes include:

• The E.164 numbering plan for telephone numbers, including:
  • The North American Numbering Plan
  • The UK National Numbering Scheme
• The IP address allocation scheme (IANA)
• The NSAP allocation scheme
• The MAC address allocation scheme for hardware addresses of certain networking products
• The UPC numbering scheme for barcodes on products
• The EAN numbering scheme (EAN International), including
  • ISBN codes for books
  • ISSN codes for periodicals
• Dewey Decimal Classification and Universal Decimal Classification for books
• US Social Security numbers
• Credit card number prefixes
• FIPS place codes
• Zip codes
• CAS registry numbers for chemical compounds
• EC numbers for identifying enzymes
• UN numbers for (classes of) hazardous substances
• E numbers for food additives
• West American Digest System legal topic numbering scheme
• Road numbering schemes
  • British road numbering scheme
  • European route by UNECE
  • Interstate highway