# Who "owns" the Class A IP addresses? **URL:** \ **Category:** Factual Questions\ **Created:** [August 30, 2004, 11:12pm UTC](https://boards.straightdope.com/t/who-owns-the-class-a-ip-addresses/262318 "2004-08-30T23:12:39Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Alan\_E\_Sheets](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@Alan\_E\_Sheets](https://boards.straightdope.com/u/Alan_E_Sheets)\ **Post date:** [August 30, 2004, 11:12pm UTC](https://boards.straightdope.com/t/who-owns-the-class-a-ip-addresses/262318/1 "2004-08-30T23:12:39Z")
Who currently has the rights to the 126 Class A Ip ranges? I know that AT&T has 12.x.x.x, and that HP has 15.x.x.x and 16.x.x.x . I know that 10.x.x.x is reserved by RFC 1918. Buy who has the rest? I can’t find a Google reference at all (it just keeps giving me definitions of CIDR). ---
**Author:** ![ouryL](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ouryl/32/6067_2.png) [@ouryL](https://boards.straightdope.com/u/ouryL)\ **Post date:** [August 30, 2004, 11:16pm UTC](https://boards.straightdope.com/t/who-owns-the-class-a-ip-addresses/262318/2 "2004-08-30T23:16:56Z")
> [@Alan E Sheets](#): > > Who currently has the rights to the 126 Class A Ip ranges? I know that AT&T has 12.x.x.x, and that HP has 15.x.x.x and 16.x.x.x . I know that 10.x.x.x is reserved by RFC 1918. Buy who has the rest? I can’t find a Google reference at all (it just keeps giving me definitions of CIDR). Microsoft, for one. TeeHee :eek: 😃😃 :eek: ---
**Author:** ![yoyodyne](https://avatars.discourse-cdn.com/v4/letter/y/a9a28c/32.png) [@yoyodyne](https://boards.straightdope.com/u/yoyodyne)\ **Post date:** [August 30, 2004, 11:45pm UTC](https://boards.straightdope.com/t/who-owns-the-class-a-ip-addresses/262318/3 "2004-08-30T23:45:02Z")
[Here you go](http://www.iana.org/assignments/ipv4-address-space) ---
**Author:** ![Telemark](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/telemark/32/372_2.png) [@Telemark](https://boards.straightdope.com/u/Telemark)\ **Post date:** [August 31, 2004, 12:32am UTC](https://boards.straightdope.com/t/who-owns-the-class-a-ip-addresses/262318/4 "2004-08-31T00:32:35Z")
Ah, nice to see the DEC name in print once more. I assume that one is owned by HP now as well. ---
**Author:** ![beltbuckle](https://avatars.discourse-cdn.com/v4/letter/b/3da27b/32.png) [@beltbuckle](https://boards.straightdope.com/u/beltbuckle)\ **Post date:** [August 31, 2004, 1:28am UTC](https://boards.straightdope.com/t/who-owns-the-class-a-ip-addresses/262318/5 "2004-08-31T01:28:55Z")
I work at HP, and can tell you that both the 15 and 16 class A networks are used. All of the pre-merger Compaq stuff is 16 and pre-merger 15 stuff is HP. There are eventual plans to convert everything to net 16. I heard a rumor that there was some period of time HP had to give up one of their class A ranges, due the two companies now being one (on paper), but am not sure if it is true.