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Fake Data

Safety First

Note, that some libraries intended for the creation of fake data—for instance Faker—provide the means to create data safely as per the below.

Telephone Numbers

Ofcom provide safe numbers for use in TV and radio drama programmes.

IP addresses

IPv4

RFC 5737 provides a range of reserved blocks:

  • 192.0.2.0/24
  • 198.51.100.0/24
  • 203.0.113.0/24

IPv6

RFC 3849 provides the same for IPv6:

  • 2001:DB8::/32

Domains, hostnames and email addresses

Several reserved domain name are provided by RFC 6761, including the classics:

  • example.com
  • example.net
  • example.org

Credit cards

Stripe provide details of various credit card brands, from various countries which can be used for testing.

Banking

European Commerce Banking Service.

IBAN.

NHS numbers

Examples provided here and here.

UK National Insurance number

Only one is available:

  • QQ 12 34 56 C