Internet Assigned Numbers Authority

Public Data Network Numbers

Last Updated
2010-06-24
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Registry included below

Public Data Network Numbers

Registration Procedure(s)
Registrations no longer accepted
Reference
[RFC1356]
Note
One of the Class A networks (14.0.0.0/8) was used to map between Internet
Addresses and the Public Data Network Addresses (X.121). This network was
reclaimed by IANA in 2007 and was was subsequently re-allocated in 2010.
See [IANA registry ipv4-address-space].

See [RFC877] and [RFC1356] for historical information.
No registrations at this time.