Dial-up forum: Two ISPs have similar reverse DNS; both equally slow

by: inalamotown June 8, 2009 10:26 AM PDT

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Two ISPs have similar reverse DNS; both equally slow

by inalamotown - 6/8/09 10:26 AM

My two ISPs have similar "machine names" ("reverse DNS"); does that have to do with why the dial-up connect speeds are so close or even identically slow?

Since my dial-up connect speeds have continued to get slower, I signed up for an additional ISP, thinking that if it had better speeds on the average I would drop my old ISP. To my surprise the connect speeds are often identical and, when not identical, are very close. They are both very slow.

The ShieldsUP! web page (https://www.grc.com/x/ne.dll?bh0bkyd2) shows a "machine name" (also called "reverse DNS") and the IP. The page says:

"The end of the string is probably a domain name related to your ISP. This will be common to all customers of this ISP"

My two ISPs have very similar machine names.

For example, here is the result of dialing up one ISP then disconnecting and connecting to the other ISP:
(Dialing from home in San Antonio, Texas; local phone service provider is ATT.) (the Xs are for the parts that are different)

ISP ATT/YAHOO - 19,200 bps -
xxx.dallas-xxxxxxxxxxxx.tx.dial-access.att.net

ISP STIC - 19,200 bps - (STIC is owned by Ikano in Utah)
xxx.dallas-xxxxxxxxxx.tx.dial-access.att.net

Questions:

1) Is this similarity because I have ATT phone service?
2) Is the STIC ISP server at the same physical location as the ATT ISP?
3) Does the machine name similarity relate to the often identically slow connect speeds? And if so, how?

Important question
4) While searching for a faster ISP, what question do I ask to avoid getting another ISP that will use the same resources (assuming these two do use the same resources)?

Thanks

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