[ih] The classful <net>.<host> IPv4 address format

[Jack Haverty]

Good find!  Yes, I expanded the acronym incorrectly.

It looks like these were scanned from someone's paper copies, rather 
than being captured from some website.  I'm still curious about why 
PRTNs were treated differently from other similar notes such as IENs and 
RFCs, which were accessible online at SRI-NIC even in the 1970s.

According to a reliable source, namely a plaque at Rossotti's Alpine Inn 
in Portola Valley, the "Beginning of the Internet Age" occurred on 
August 27, 1976 when an "electronic message ... was sent via a radio 
network to SRI and on through a second network, the ARPANET, to 
Boston.   Full story is here: 
https://computerhistory.org/wp-content/uploads/2019/08/core-2002-02.pdf

So, Packet Radio and ARPANET were the first networks interconnected by 
Gateways to form the Internet.

But IIRC information, e.g., PRTNs, about the Packet Radio work was not 
online like RFCs and IENs.   Anybody remember the reason?

Jack Haverty



On 9/14/25 17:05, Joe Hamelin wrote:
>
> On Sun, Sep 14, 2025 at 9:31 AM Jack Haverty via Internet-history 
> <internet-history at elists.isoc.org> wrote
>
>
>     This user interface was described in documents from SRI. There was a
>     collection of published documents called PRTNs (Packet Radio
>     Technical
>     Notes) that may have been where you saw the TIU address format you
>     described.  Sorry, I don't know where to find PRTNs today.
>     Jack Haverty
>
> If you're thinking of the Packet Radio Temporary Notes they can be 
> found in the DLARC on archive.org <http://archive.org>.
> https://archive.org/details/packet-radio-temporary-notes
> Contact kay at archive.org for more information.  He gave a talk 
> yesterday at the Zero Retries Digital Conference in Everett, WA and 
> mentioned these.
> -Joe
>
> -- 
> Joe Hamelin, W7COM, Portland, OR, +1 360 474 7474

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