Public Data Network Numbers

Last Updated

• 2010-06-24

Available Formats

• XML
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• TXT

Public Data Network Numbers

Registration Procedure(s)

• Registrations no longer accepted

Reference

• RFC 1356: Multiprotocol Interconnect on X.25 and ISDN in the Packet Mode

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 IPv4 Address Space.

See RFC 877 and RFC 1356 for historical information.