[ih] 13 the unlucky number (fwd)

[jericho]

Only one reply and it did not provide an explanation. Figure this might be 
the group to answer it.

Brian

---------- Forwarded message ----------
From: Alejandro Acosta via Internet-history <internet-history at elists.isoc.org>
To: Internet-history <internet-history at elists.isoc.org>
Date: Mon, 10 Aug 2020 19:58:54 -0400
Reply-To: Alejandro Acosta <alejandroacostaalamo at gmail.com>
Subject: [ih] 13 the unlucky number

Hello list,

    I have a question and one more time I believe this a good place to ask.

    During the weekend I read the old RFC 790 (ASSIGNED NUMBERS). When 
reading it I noticed the following:

{...}

        009.rrr.rrr.rrr   BRAGG-PR      Ft. Bragg Packet Radio Net [JEM]
        010.rrr.rrr.rrr   ARPANET       ARPANET [17,1,VGC]
        011.rrr.rrr.rrr   UCLNET        University College London     [PK]
        012.rrr.rrr.rrr   CYCLADES      CYCLADES [VGC]
        013.rrr.rrr.rrr                 Unassigned [JBP]
        014.rrr.rrr.rrr   TELENET       TELENET [VGC]
        015.rrr.rrr.rrr   EPSS          British Post Office EPSS      [PK]
        016.rrr.rrr.rrr   DATAPAC       DATAPAC [VGC]
        017.rrr.rrr.rrr   TRANSPAC      TRANSPAC [VGC]
        018.rrr.rrr.rrr   LCSNET        MIT LCS Network [43,10,DDC2]

{...}


    As you can see the 013.rrr.rrr.rrr was unassigned but some subsequent 
prefix were (014, 015 ..... ). Is there any reason for it?. I know 013 
was later assigned to XEROX-NET.

    I wonder if 013 was skipped because some sort of superstitions?.


Thanks,


Alejandro,



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